LAKEWOOD 

CONCRETE 

PLACING 

EQUIPMENT 

BULLETIN  23-E 


We  Lakewood  Engineering  Co. 

Cleveland  U.S.A. 


Bulletin  23-E 

The  Lakewood  Engineering  Co. 

Cleveland,  U.  S.  A. 


Page  tiuo 


The  Concrete  Chuting  Plant 

ACHUTING  plant  may  be  used  in  two  ways,  it  may  be  designed  to  deliver 
the  concrete  to  floor  hoppers  at  centralized  points  on  the  work,  or  the 
plant  can  be  laid  out  for  pouring  direct  into  the  forms.  To  determine 
which  method  should  be  used  requires  a  study  of  each  particular  job. 

There  are  three  types  of  chuting  plants  in  use.  First,  the  Boom  Plant; 
second,  the  Unit  Plant;  third,  the  Continuous  Line  Plant.  Of  course,  there 
are  various  possible  combinations  of  the  three  types,  but  as  a  general  rule  boom 
and  unit  plants  apply  almost  entirely  to  building  work  and  the  continuous  line 
plant  to  dams,  bridges  and  work  of  that  character.  The  various  types  of 
plants  are  illustrated  on  the  opposite  page. 

In  general,  a  chuting  plant  consists  of  an  elevator  bucket,  which  operates 
in  a  tower  and  a  tower  hopper,  which  may  or  may  not  be  mounted  on  a  slid¬ 
ing  frame  and  the  necessary  chutes  for  covering  the  job.  A  properly  laid  out 
chuting  plant  should  produce  a  marked  saving  in  time  and  labor.  The 
amount  of  concrete  which  can  be  placed  is  limited  only  to  the  capacity  of  the 
mixing  plant  and  the  forms  available.  The  point  of  pouring  can  easily  be 
diverted  from  point  to  point  without  it  being  necessary  to  take  up  and  replace 
runways.  More  continuous  operation  of  the  mixing  plant  will  be  secured 
which  naturally  means  more  economical  operation.  Furthermore,  on  a  con¬ 
struction  job,  due  to  local  conditions,  it  may  be  impossible  to  locate  the  mixing 
plant  exactly  at  the  building  or  perhaps  the  concrete  has  to  be  carried  over  a 
stream  or  other  obstruction.  On  such  jobs,  the  chuting  plant  provides  a  method 
for  solving  the  problem  economically. 

The  chuting  plant  can  no  longer  be  considered  a  one  job  installation.  It 
is  durable  and  easy  to  move — it  is  composed  of  standard,  interchangeable  parts 
which  can  be  fitted  and  rearranged  to  meet  practically  any  job  requirement. 
The  interchangeability  of  the  various  units  also  means  quicker  and  easier  erec¬ 
tion  and  it  is  important  in  purchasing  a  chuting  plant  to  see  that  interchange- 
ability  of  parts  is  secured.  It  is  a  feature  which  Lakewood  Chuting  Equip¬ 
ment  assures.  Again,  the  chuting  plant  is  really  a  machine  and  to  secure  the 
results  desired,  must  be  correctly  applied  to  the  work  at  hand  and  properlv 
operated. 


Bulletin  No.  2J-E 


Page  three 


BOOM  PLANT 
On  the  boom  type  of 
plant  the  peaking  line 
connection  and  steel 
boom  seat  are  all  mount¬ 
ed  on  a  steel  sliding 
frame  with  the  tower 
hopper — the  first  section 
of  chute  runs  through 
an  opening  in  the  boom 
and  does  not  require 
trussing.  This  type  of 
plant  is  used  principally 
with  Counterweight  chutes 
on  either  wood  or  steel 
towers,  but  can  be  used 
with  plain  sections  if 
desired. 


UNIT  PLANT 

The  Unit  Plant  com¬ 
bines  the  steel  boom  with 
the  first  section  of  chute. 
Altho  this  requires  a 
slightly  higher  tower,  the 
plant  is  easy  to  erect  and 
simple  to  operate.  The 
operation  of  the  Unit 
Plant  is  much  like  a  gas 
jet.  When  the  pouring 
end  of  the  second  section 
is  moved  the  balance  of 
the  plant  finds  its  own 
position.  Counterweights 
can  be  used  with  the 
Unit  Plant  as  well  as 
with  the  Boom  Plant. 


CONTINUOUS  LINK 
PLANT 

The  Continuous  Line 
Plant  has  many  varia? 
tions.  It  may  be  simply 
a  straight  line  of  chute 
or  line  gates  may  be  in 
stalled  at  various  points 
for  distributing  the  con 
Crete  to  points  under  th 
chute  line.  Many  times 
an  economical  combina¬ 
tion  is  a  continuous  line 
chute  with  a  Counter¬ 
weight  at  the  discharge 
end  of  the  line  for  dis¬ 
tributing  the  concrete. 


The  Lakewood  Engineering  Company 

Cleveland,  U.  S.  A. 


Page  four 


The  Concrete  Chuting  Plant 

Consistency  of  the  Concrete: 

The  general  statement  is  sometimes  made  that  to  chute  concrete,  an  extremely  wet, 
sloppy  mix  is  required.  As  a  matter  of  fact,  a  very  sloppy  mix  will  cause  continuous 
trouble  with  any  chuting  plant  for  the  reason  that  the  mix  separates  in  the  chute,  the 
grout  leaving  the  heavier  aggregates  stranded,  thus  causing  clogging.  Practical  ex¬ 
perience  with  hundreds  of  chuting  plants  has  proved  that  a  good,  creamy,  workable 
mix  is  the  one  which  can  be  handled  the  easiest  in  a  chuting  plant,  providing  the 
proper  slope  for  the  chute  is  maintained  and  that  excessively  wet  batches  or  flat  chute 
lines  are  almost  entirely  responsible  for  difficulties  experienced  with  a  properly  laid 
out  plant.  Concrete  varying  in  slump  under  the  standard  “slump  test”  from  3"  to  6" 
can  be  handled  satisfactorily  in  chutes. 

Slope  of  Chute  Lines: 

For  chute  lines  not  over  175  ft.  in  length,  a  slope  of  not  less  than  one  to  three  is  rec¬ 
ommended  and  on  that  slope,  a  good  concrete  mix  can  be  handled  satisfactorily  in  all 
respects.  On  lines  longer  than  175  ft.,  we  recommend  a  one  to  two  and  three-quarters 
to  a  one  to  two  and  one-quarter  slope,  depending  upon  the  capacity  desired,  the  length 
of  the  line,  and  the  type  of  aggregate  used.  It  has  been  demonstrated  that  concrete 
much  drier  than  that  ordinarily  used  on  building  construction  can  be  placed  with 
chutes  on  the  slopes  as  outlined  above. 

Relationship  in  Size  of  Buckets,  Hoppers,  Etc.: 

There  is  a  general  rule  covering  the  size  of  bucket  and  hopper  to  be  used  with  a 
given  size  of  mixer  which,  in  general,  can  be  stated  as  follows:  The  working  capacity 
of  the  elevator  bucket  should  correspond  with  the  wet  batch  capacity  of  the  mixer.  The 
tower  hopper  should  have  at  least  fifty  per  cent  greater  working  capacity  than  the 
bucket  to  provide  extra  storage  capacity  in  case  of  a  hold  up  of  the  concrete.  All 
Lakewood  elevator  buckets  and  tower  hoppers  are  rated  on  a  conservative  working 
basis  and  have  a  considerably  larger  water  level  capacity  as  reserve. 

Capacity  and  Length  of  Life: 

Lakewood  standard  chute  has  a  body  of  twelve  gauge  plate  and  a  greater  cross 
sectional  area  than  any  other  type.  It  gives  in  addition  to  its  greater  capacity,  forty 
per  cent  more  wearing  thickness  of  body  than  chutes  made  of  14  gauge  plate.  The 


Bulletin  No.  2 J-E 


Page  five 


The  Concrete  Chuting  Plant 

life  of  a  chute  section,  of  course,  depends  on  so  many  variables,  such  as  the  type  of  sand, 
type  of  heavy  aggregate,  care  given  the  chute,  etc.,  that  it  is  quite  impossible  to  make 
a  general  statement  which  will  cover  all  cases.  Chutes  can  be  relined  with  liners  of  a 
thickness  depending  upon  the  yardage  to  be  handled.  Lakewood  standard  chute  on  an 
average  slope  will  handle  much  more  concrete  under  average  operation  than  can  pos¬ 
sibly  be  mixed  per  hour  by  a  one  yard  mixer. 


The  Steel  Tower: 

The  fundamental  feature  of  the  modern  chuting  plant  is  the  steel  tower  and  it  is 
justly  so,  for  the  steel  tower  is  one  of  the  most  permanent  and  economical  parts  of  the 
contractor’s  plant  for  placing  concrete.  The  Lakewood  Engineering  Company  was 
one  of  the  pioneers  in  the  development  of  the  steel  tower  and  the  present  Lakewood 
steel  tower  as  described  in  this  bulletin  makes  possible  economies  in  erection  and  dis¬ 
mantling,  greater  layout  possibilities  and  presents  greater  strength  than  ever  hereto¬ 
fore  secured  with  the  standard  steel  tower.  Made  up  of  standard  interchangeable  sec¬ 
tions,  it  can  be  varied  in  height  as  conditions  demand;  it  can  be  erected  much  easier 
and  quicker  because  it  is  framed  and  punched  to  template;  it  has  greater  rigidity  and 
strength  than  the  average  wood  tower  under  similar  conditions,  and,  most  important 
of  all,  it  will  outlive  fifteen  to  twenty  jobs  or  even  more  with  proper  care  as  to  painting 
and  storage.  Records  are  available  of  Lakewood  steel  towers  built  over  ten  years  ago 
which  are  still  in  active  service  on  construction  work,  without  repairs,  with  the  excep¬ 
tion  of  new  bolts. 


Factors  of  Success: 

The  success  of  a  chuting  plant  and  the  satisfaction  with  results  secured  from  it, 
both  from  the  contractor’s  and  the  engineer’s  standpoint  are  dependent  upon  certain 
definite  things — first  of  all,  a  good,  workable,  creamy  mix  of  concrete,  not  a  sloppy 
extremely  wet  mix.  Second,  securing  as  nearly  as  practicable,  the  same  consistency  of 
concrete,  batch  after  batch,  from  the  mixing  plant.  Third,  an  experienced,  capable 
man  regulating  the  flow  of  concrete  into  the  line  from  the  hopper  and,  fourth,  a  prop¬ 
erly  laid  out  plant.  The  importance  of  this  last  item  cannot  be  underestimated. 

The  experience  of  Lakewood  engineers  with  chuting  plants  covers  practically  all 
types  of  concrete  construction.  They  will  be  glad  to  cooperate  in  any  way  possible  on 
layout  work  and  such  cooperation  involves  no  obligation  upon  those  requesting  it. 


The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  six 


The  Use  of  Large  Aggregate  in  Chuting  Plants 


THERE  is  an  increasing  demand  for 
greater  hourly  capacity  in  chuting 
equipment  and  also  for  a  chute 
which  will  handle  aggregate  running  to 
6"  and  8"  in  size.  This  is  particularly 
true  of  dam  construction,  a  type  of  con¬ 
struction  upon  which  a  chuting  plant  is 
generally  a  most  valuable  unit.  To  meet 
these  requirements,  there  has  been  de¬ 
veloped  a  modification  of  standard  Lake- 
wood  chuting  and  also  a  special  chute, 
18"  in  diameter. 


Lakewood  14"  Chute  with  Arched  Cross  Bands. 


For  the  small  dam  projects  and  for  heavy  mass  concrete  jobs,  Lakewood  standard 
chute  with  arched  bands  and  reliners  is  furnished  similar  in  all  respects  to  the  cut  at 
the  top  of  the  page.  Standard  Lakewood  chute  has  a  greater  capacity  than  any  other 
standard  type  of  chute  and  when  equipped  with  the  arched  bands  and  heavy  reliners, 
makes  an  ideal  unit  for  handling  the  larger  jobs  and  large  aggregate — Lakewood  chute, 
so  equipped,  on  a  1  to  2^4  slope,  will  handle  all  the  concrete  which  can  be  supplied 
by  three  one-yard  mixers  working  under  average  conditions,  and  it  is  particularly 
fitted  for  the  large  aggregate  because  of  the  Lakewood  elbow  connection  and  the  shape 
of  the  chute  itself.  The  Lakewood  elbow  connection  gives  a  14"  diameter  full  circle, 
with  all  working  parts  on  the  outside  of  the  connection,  thus  eliminating  the  clogging 
always  experienced  with  large  aggregate  with  other  types  of  chute  connection,  while 
the  half  round  section  of  Lakewood  chute  eliminates  the  tendency  of  large  aggregate  to 
wedge  and  clog  in  the  bottom  of  the  chute,  as  it  will  do  in  the  narrow  egg  shape  sec¬ 
tions.  Chute  of  the  type  just  described  is  in  use  on  the  jobs  pictured  on  pages  8,  9,  10 
and  14. 


Where  unusually  hard  aggregate  is  to  be  used  or  where  enormous  yardages  are 
desired  without  taking  the  chute  down  for  relining,  iV'  reliner  plates  are  recommended. 
Reliners  of  this  thickness  were  furnished  on  the  jobs  shown  on  pages  8  and  10  and 
records  are  available  of  their  handling  75,000  to  125,000  cubic  yards  of  concrete  with¬ 
out  relining.  These  heavy  reliners  are  bolted  into  the  chute  and  are  intended  for  use 
in  long  continuous  line  chute  or  counterweight  sections  but  not  in  the  sections  which 
must  be  continually  moved  by  workmen  as  the  pouring  progresses. 

The  18"  Lakewood  chute  is  intended  for  those  dams  and  larger  concrete  projects 

where  two  or  more  56-S  mixers  are  to  be 
used.  It  is  identical  in  cross  section  and  gen¬ 
eral  construction  to  the  arched  band  standard 
chute  except  changed  as  to  the  weights  of 
material  and  general  dimensions.  The  photo¬ 
graphs  on  page  10  shows  a  job  equipped  with 
this  18"  chute,  it  is  practically  always  equip¬ 
ped  with  tV'  reliners.  Only  20  foot  continu¬ 
ous  line  with  30'  and  50'  counterweight  chute 
sections  are  furnished  in  this  size  of  chuting 
equipment. 


Lakewood  18"  Chute  with  Arched  Bands. 


Bulletin  No.  2 J-E 


Page  seven 


THE  chuting  plant  above  consists  of  two  main  towers  at  the  mixing  plant 
with  a  combination  of  continuous  line  chute  and  counterweight  sections. 

The  elevation  of  the  mixing  plant  was  such  that  no  towers  were  required  for 
the  first  part  of  the  work.  By  the  use  of  line  gates  in  the  main  chute  lines,  four 
distinct  lines  of  pouring  are  secured,  two  of  which  are  visible  in  the  view  shown. 

Thus  the  entire  area  of  the  dam  was  covered  by  simply  manipulating  the  counter¬ 
weight  sections  without  changing  the  main  lines.  Each  main  chute  line  handles 
the  output  of  two  1-yard  Lakewood  mixers.  The  working  season  at  this  elevation 
is  very  short  and  the  chuting  plant  has  done  much  to  make  the  unusual  progress 
secured  on  this  job  possible.  This  work  is  in  the  Swiss  Alps. 

The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  eight 


The  Phoenix  Utility  Company,  Duluth,  Minn. 

A  LAKEWOOD  installation  on  a  hydro-electric  power  development  in 
Minnesota.  Three  one-yard  mixers  were  placed  at  the  base  of  the  towers. 
The  towers  are  each  standard  240-ft.  Lakewood  steel  towers,  latticed  to¬ 
gether,  which,  on  other  jobs,  may  be  used  separately,  as  each  is  complete  in  it¬ 
self.  Continuous  line  chutes,  in  combination  with  a  double  counterweight  were 
used  to  place  the  concrete  within  six  hundred  feet  of  the  towers.  The  tower 
hoppers  are  arranged  on  sliding  frames  so  that  the  chute  line  takes  off  from 
the  lower  hopper,  the  concrete  from  the  upper  hopper  flowing  thru  the  lower 
hopper  to  get  into  the  line.  The  chute  on  this  job  is  similar  to  that  outlined 
on  upper  half  of  page  6  and  is  equipped  with  tV'  reliners.  This  standard 
arched  band  chute  has  at  all  times  taken  care  of  the  mixing  capacity  available 
on  this  job. 


Bulletin  No.  2J-E 


Page  nine 


ANOTHER  installation  on  dam  construction  in  the  Alps  of  Switzer- 
r\  land.  Four  one-yard  Lakewood  mixers  make  up  the  mixing  plant.  For 
the  first  three  years’  work  (there  is  a  very  short  working  season  at  this 
elevation)  no  towers  will  be  required;  the  mixers  discharging  directly  into  hop¬ 
pers  which  feed  the  chute  line.  Two  lines  of  chute  were  used  as  shown;  a  line 
to  two  one-yard  mixers.  The  chuting  plant  was  a  combination  of  continuous 
line  and  counterweight  sections  similar  in  capacity  to  that  described  on  the  upper 
half  on  page  6.  The  crest  of  the  dam  will  be  at  about  the  base  of  the  mix¬ 
ing  plant — two  steel  towers  will  be  used  for  completing  the  work  to  the  crest. 

Note  particularly  the  rig  up  of  the  chute  line  required  for  the  drop  to  the  base 
of  the  dam,  and  the  fact  that  each  line  of  this  Lakewood  chute  has  capacity 
enough  to  handle  the  output  of  two  one-yard  mixers. 

The  Lakewood  Engineering  Company 
Cleveland U.  S.  A. 


Page  ten 


The  Shawinigan  Engineering  Co.,  Montreal,  Que. 


ON  the  above  job,  three  towers  were  erected,  each  one  supporting  a  130-ft. 
Lakewood  boom  counterweight  plant.  Each  plant  covered  300-lineal 
feet  of  the  work.  All  the  concrete  was  mixed  at  a  central  plant  at  a  dis¬ 
tance  of  1500-ft.  and  hauled  in  bottom  dump  cars  to  the  base  of  the  towers, 
where  it  was  elevated  and  placed  in  the  forms.  The  contractor’s  own  words  tell 
the  story: 

“In  this  connection ,  I  think  it  is  quite  sufficient  to  simply  state  that 
your  chutes  have  poured  149,000  yards  of  concrete  during  the  last 
seven  months  of  IQ  They  have  given  us  entire  satisfaction  and 
for  similar  work  such  as  we  are  doing  here  I  do  not  think  better  per¬ 
formance  could  be  asked  for.” 

These  plants  were  made  up  of  14"  Lakewood  arched  band  chute  equipped  with 
t¥'  reliners  as  described  on  page  6. 


Bulletin  No.  2J-E 


Page  eleven 


The  Hugh  Nawn  Company,  Gilboa  Dam,  N.  Y. 


THE  dam  shown  above  involved  placing  approximately  350,000  cu.  yds.  of 
concrete.  Two  Lakewood  two-yard  mixers  were  placed  at  the  base  of  the 
double  tower  shown  near  the  left  hand  side  of  the  page  in  the  view  above. 
Concrete  was  chuted  in  both  directions  from  this  main  tower  and  was  re-ele- 
vated  to  carry  to  the  far  end  of  the  dam.  For  the  main  chute  line  between  the 
two  towers,  18"  Lakewood  chute  was  used,  similar  to  that  shown  in  detail  on 
page  6.  Fourteen  inch  chute  was  used  for  distributing  lines.  Line  gates  in 
the  main  18"  line  were  provided  for  distributing  the  concrete  at  various  points 
on  the  dam  between  the  main  towers.  Enormous  daily  yardages  were  secured 
from  the  two  two-yard  mixers  but  at  no  time  was  the  18"  chute  crowded  to 
capacity.  This  job  presented  a  particularly  hard  layout  problem  due  to  its  un¬ 
usual  length,  but  the  chuting  plant  solved  the  problem. 


The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  twelve 


General  Construction  Securities  Co.,  Pittsburgh,  Pa. 

ON  filtration  plants,  reservoirs  and  mass  concrete  jobs  where  the  bulk  of 
the  concrete  is  below  or  just  slightly  above  ground  level,  the  double 
counterweight  plant  provides  a  very  satisfactory  method  for  handling 
concrete.  The  advantage  of  the  double  counterweight  system  lies  in  the  fact 
that  from  a  central  point  it  will  cover  an  unusually  large  area  largely  eliminat¬ 
ing  supports  and  thus  making  it  easier  to  move  the  plant  from  point  to  point. 
The  plant  above  is  a  very  good  example  of  such  an  installation.  In  this  plant, 
which  includes  a  150-ft.  steel  tower,  the  double  counterweight  is  suspended 
from  an  overhead  cable  and  from  this  set  up  an  area  320-ft.  in  diameter  was 
covered.  Many  times  a  derrick  is  used  rather  than  a  cable  for  supporting  the 
counterweights  as  in  the  plant  shown  on  page  16.  The  use  of  a  single  counter¬ 
weight  section  with  additional  untrussed  sections  at  the  end  of  continuous  line 
chutes  many  times  meets  all  requirements. 


Bulletin  A  o.  P  j-E 


Page  thirteen 


The  Crafts  Construction  Co.,  Cleveland,  Ohio 


MANY  times  a  combination  of  chuting  and  carting  is  the  most  economical 
method  for  handling  a  job  —  the  above  installation  illustrates  this 
method.  The  construction  of  two  buildings  was  involved  and  it  was  de¬ 
sired  to  handle  the  concrete  for  both  buildings  from  one  central  mixer  and 
tower.  The  tower  was  erected  as  shown  and  chute  used  to  place  the  concrete 
in  a  floor  hopper,  from  there  it  was  carted  to  the  forms.  The  chute  could  be 
swung  about  to  either  building  as  desired  and  eventually  was  lengthened  by  ad¬ 
ditional  sections  to  aid  in  distributing.  On  this  particular  job,  a  half  yard  Lake- 
wood  mixer  was  used  in  addition  to  the  Lakewood  Steel  Tower,  chuting  equip¬ 
ment  and  carts.  Lakewood  concrete  placing  equipment  is  complete  for  the 
small  job  as  well  as  the  large  job,  regardless  of  the  method  or  combination  of 
methods  adopted  as  most  economical  for  handling  the  concrete. 


The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  fourteen 


The  F oundation  Company ,  Carthage,  N.  Y. 


IN  the  installation  shown  above,  the  arrangement  for  handling  two  lines  of 
chute  from  the  same  tower  at  different  elevations  is  the  interesting  feature. 
Concrete  was  desired  at  two  widely  separate  points,  requiring  the  use  of  ap¬ 
proximately  600-ft.  of  chute  and  two  supporting  cables.  A  one  yard  Lakewood 
mixer  was  used  at  the  base  of  the  tower.  The  two  tower  hoppers  were  mounted 
on  separate  sliding  frames  and  raised  into  position  as  shown.  If  it  had  not  been 
necessary  to  chute  farther  in  one  direction  than  the  other,  the  two  chutes  could 
have  been  attached  to  a  two-way  hopper  switch  as  shown  on  page  50  and  only 
one  hopper  used,  making  a  more  easily  operated  layout,  as  the  bucket  would 
have  then  been  dumping  at  one  point  only.  The  chute  on  this  job  is  the  stand¬ 
ard  Lakewood  chute  with  arched  bands  and  12  gauge  reliners  as  shown  on 
page  6. 


Bulletin  No.  2 J-E 


Page  fifteen 


The  Vang  Construction  Co.,  Cincinnati,  Ohio 


THE  installation  shown  above  was  used  to  pour  the  concrete  in  the  piers 
and  approaches  of  a  railroad  bridge  over  the  Ohio  river.  A  255'  one  yard 
capacity  steel  tower  and  approximately  800'  of  chute  were  involved.  Con¬ 
crete  was  chuted  760'  across  the  river  and  then  the  line  was  gradually  shortened 
as  the  concrete  was  poured  in  the  piers  back  towards  the  tower  and  mixing 
plant,  as  can  be  seen  from  the  cut  above.  Two  lines  of  chute  were  used.  The 
long  line  and  then  a  shorter  line  reaching  to  the  piers  near  the  tower,  thus  giv¬ 
ing  two  points  of  pouring.  The  two  chute  lines  were  supported  from  the  same 
overhead  cable.  Notice  that  chutes  are  supported  to  cable  in  30'  lengths. 


The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  sixteen 


Snare  &  Triest,  Perth  Amboy,  N.  J. 


THE  plant  shown  above  has  many  advantages  but  is  particularly  valuable 
on  reservoirs,  filtration  plants  and  power  houses.  A  continuous  line  chute 
is  run  out  to  a  hopper  mounted  on  the  mast  of  a  derrick  as  shown  —  this 
mast  hopper  is  made  in  two  parts  and  fastens  rigidly  to  the  mast,  turning  with 
it.  Either  a  single  or  double  counterweight  can  then  be  suspended  from  the  der¬ 
rick.  The  plant  can  revolve  practically  360  degrees  and  eliminates  chute  sup¬ 
ports  which  are,  many  times,  troublesome.  The  use  of  a  double  counterweight 
(see  page  12)  would  increase  the  diameter  of  the  area  covered  by  the  plant 
100-ft.  On  this  particular  job,  two  such  units  as  shown  above  were  used  to 
pour  the  concrete  in  a  reservoir  which  was  900-ft.  long  and  varied  in  width 
from  230-ft.  to  370-ft.  The  maximum  area  which  can  be  easily  covered  with  this 
type  of  plant  is  circular  and  380-ft.  in  diameter. 


Bulletin  No.  2J-E 


Page  seventeen 


The  Foundation  Company,  Mishawaka,  lnd. 


AN  unusual  power  house  chuting  plant  layout.  Two  towers  were  erected  to 
.  support  the  main  chute  line.  A  shorter  tower  was  then  erected  midway 
between  them.  The  main  chute  line  was  run  thru  the  top  panel  of  this 
tower  which  supported  a  cable  for  another  line  of  chute  running  out  at  right 
angles  to  the  first  line.  Connection  to  the  main  chute  line  was  made  by  a  line 
gate  placed  at  the  top  of  the  short  tower.  The  main  chute  line  then  ran  on  to  a 
two-way  switch  from  which  two  additional  lines  of  chute  extended.  This  lay¬ 
out  covered  a  very  large  area  and  provided  three  distinct  points  of  pouring  at 
any  time  without  shifting  the  plant  in  any  way.  The  greater  capacity  of  stand¬ 
ard  Lakewood  chute  is  very  valuable  on  a  job  of  this  kind. 


The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  eighteen 


The  General  Contracting  Corporation,  Pittsburgh,  Pa. 


THE  plant  shown  above  was  used  on  power  house  construction  and  con¬ 
sisted  of  a  double  counter  weight  boom  plant  suspended  from  a  steel  tower. 
The  plant  was  not  mounted  on  a  sliding  frame  but  remained  fixed  on  the 
tower  in  the  position  shown.  The  second  counter  weight  was  of  course  sup¬ 
ported  at  all  times  when  concrete  was  being  poured.  The  plant  had  a  maxi¬ 
mum  reach  of  180'  from  the  tower.  Due  to  the  unusual  condition  to  be  met  on  this 
job,  this  type  of  plant  was  the  most  satisfactory  although  very  heavy.  On  jobs 
of  this  character  which  involve  greater  daily  capacities  and  the  placing  of 
enormous  yardages  of  concrete  the  longer  life  and  greater  capacity  of  standard 
Lakewood  chute  is  a  real  advantage. 


Bulletin  No.  2J-E 


Page  nineteen 


The  Crowell-Little  Company ,  Cleveland ,  Ohio. 


THE  installation  photograph  above  shows  an  unusual  application  of  chut- 
ing  equipment  to  a  large  concrete  garage  which  was  built  in  a  crowded 
business  district,  and  under  unusually  crowded  conditions.  The  main  tower 
supported  a  unit  counterweight  plant  in  addition  to  two  overhead  cables  which 
ran  out  at  an  angle  of  120  degrees  with  each  other  to  anchorages  on  adjacent 
buildings.  These  overhead  cables  supported  elbow  sections  of  chute.  The  unit 
counterweight  plant  poured  directly  all  the  concrete  within  150-ft.  of  the  base 
of  the  tower  and  was  elevated  on  the  tower  so  that  the  counterweight  section 
could  be  swung  around  and  connected  to  either  line  of  the  elbow  connected 
chutes  which  covered  the  balance  of  the  building. 


The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  twenty 


saga; 


m— i 


ir 


mm 


mmmmmtmmamm 


The  Sanford-Brookes  Company ,  Baltimore,  Md. 


THERE  are  many  occasions  where  the  floating  plant  is  the  only  solution  of 
the  concreting  problem,  either  placing  concrete  under  water  or  in  the  super 
structure.  The  plant  shown  above  was  designed  to  handle  at  the  first  of 
the  work,  a  tremie  chute  and,  later  on,  the  concrete  in  the  super  structure  of 
the  bridge  itself.  The  70-ft.  steel  tower  was  anchored  in  place  on  the  barge  by 
stiff  legs  as  can  be  clearly  seen.  The  boom  supporting  the  chute  was  mounted 
on  a  special  sliding  frame  which  can  be  placed  at  different  elevations  on  the 
tower  as  required.  The  movement  of  the  tremie  chute  was  all  controlled  from 
the  foot  of  the  tower.  The  boom  can  swing  the  tremie  chute  thru  practically 
180  degrees  and  will  be  used  later  to  support  a  counterweight  chute  section. 
Lakewood  engineers  have  had  wide  and  varied  experience  with  the  design  and 
operation  of  special  plants  such  as  this  one  and  that  experience  is  at  the  service 
of  contractors  without  obligation  on  their  part. 


Bulletin  No.  2J-E 


Page  twenty-one 


The  Otis  Steel  Company,  Cleveland,  Ohio 


THE  plant  shown  above  is  one  of  three  furnished  for  a  steel  plant  job.  Each 
contained  a  one  yard  mixer,  60-ft.  tower  and  100-ft.  boom  counterweight 
chute  plant.  In  order  to  keep  the  over-all  height  of  the  bins  as  low  as  possi¬ 
ble  the  tower  was  suspended  in  front  of  the  car  by  means  of  two  heavy  I  beams 
which  extended  the  length  of  the  car  and  were  bolted  into  the  car  frame.  This 
made  it  possible  to  drop  the  elevator  bucket  below  the  car  floor  which  made  it 
unnecessary  to  elevate  the  mixer.  When  in  position  for  pouring,  the  tower  was 
blocked  up  from  the  rails.  The  plant  was  moved  from  point  to  point  by  the 
locomotive  crane  which  loaded  the  bin  over  the  mixer.  When  moving,  no  guys 
were  required  but  when  the  plant  was  in  position  for  pouring,  four  guys  from 
the  top  of  the  tower  were  used.  The  chuting  plant  poured  concrete  130-ft.  to 
either  side  of  the  car.  Many  times,  on  car  plants,  the  towers  are  hinged  either  at 
the  bottom  or  at  panel  points  so  they  can  be  lowered  to  pass  under  bridges,  etc. 


The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  twenty-two 


The  Gulf  Refining  Company,  Philadelphia,  Pa. 


The  Boom  Counterweight  Plant 

A  complete  Lakewood  concrete  mixing  and  placing  plant — including  a  one  yard 
mixer,  150-ft.  steel  tower  and  130-ft.  boom  counterweight  plant  with 
which  the  counterweight  chute  may  be  tied  down  while 
pouring  concrete,  eliminating  all  supports. 


Bulletin  No.  2 J-E 


.Page  twenty-three 


The  Boom  Counterweight  Plant 

THE  boom  counterweight  plant  is  the  most  commonly  used  type  of  chuting  plant. 
Designed  for  use  on  either  steel  or  wood  towers,  it  provides  a  flexible  and  economi¬ 
cal  plant  for  placing  concrete  within  a  175-ft.  radius  of  the  supporting  tower. 

A  plant  of  this  type  is  diagramed  completely  on  pages  24  and  25.  Vertical  flexi¬ 
bility  for  the  plant  is  obtained  by  mounting  the  boom  and  tower  hopper  on  a  steel 
frame,  which  slides  on  guides  attached  to  the  outer  sides  of  the  front  corner  posts  of 
the  tower.  This  frame  is  shifted  by  means  of  a  cable  running  over  sheaves  on  top  of 
the  tower  to  the  hoisting  engine,  and  permits  moving  the  plant  on  the  tower  as  a  unit. 

The  use  of  a  counterweight  chute  as  the  second  section  of  the  plant  greatly  reduces 
the  time  and  labor  required  for  moving  the  chutes  from  point  to  point  when  pouring. 
Counterweight  chutes  are  simply  standard  chute  sections  with  a  truss  so  arranged  that 
a  weight  hung  at  the  end  of  the  truss  balances  the  chute.  As  Lakewood  counterweight 
chute  sections  are  made  in  20-ft.,  30-ft.,  and  50-ft.  lengths,  a  great  number  of  plant 
combinations  are  possible.  Additional  sections  can  be  attached  to  the  counterweight 
section  to  cover  a  greater  area  if  the  job  requires  it. 

Using  a  boom  counterweight  with  a  light  type  counterweight,  the  discharge  end 
of  the  counterweight  must  always  be  supported  when  pouring  concrete.  However,  if 
desired,  the  heavy  type  counterweight  sections  may  be  used  and  the  counterweight  tied 
down  when  pouring  concrete.  Furthermore,  the  plant  may  be  extended  by  additional 
30-ft.  length,  in  other  words,  to  1 30-ft.  radius,  and  the  counterweight  may  be  tied  down 
during  concreting,  thus  eliminating  all  supports  for  the  plant  except  the  discharge  end 
of  the  30-ft.  chute  section.  Many  times  this  is  a  valuable  feature  on  the  job.  However, 
with  this  type  of  plant,  the  heavy  counterweight  must  not  be  tied  down  with  more  than 
a  30-ft.  chute  attached,  when  pouring  concrete. 

Altho  the  boom  counterweight  plant  is  used  principally  on  stationary  towers  alone 
or  in  combination  with  continuous  line  chute,  it  has  been  found  to  be  a  very  valuable 
unit  for  use  with  portable  plants,  mounted  on  cars,  special  travelers,  or  barges;  the  car 
plant  is,  of  course,  most  valuable  on  bridge  work,  grade  separation,  retaining  wall  and 
steel  mill  foundation  work. 

Every  detail  of  the  Lakewood  boom  counterweight  plant  has  been  carefully 
worked  out-— it  is  furnished  complete  in  all  respects,  with  the  exception  of  steel  blocks 
and  cable  and  is  a  plant  which  will  produce  the  results  expected  of  it. 


The  Lakewood  Engineering  Company 
Cleveland ,  U.  S.  A. 


Page  twenty-four 


The  Lakewood  Boom 


,2-8'  Sheaves  For  Hoisting  Sliding  Frame 

^^2-16"  To-p  Sheave  ForBucket  line  T.S.-16. 
* - IQ*- Single  5teel  Block.  With  Becket. 


LineTo  Hoist 
Engine 


-I  O- Double  Steel  Block 
-H-IZ*  Sheave-- 

_ 1-8"  Sheave. 


Frame  Containing  Booe^ 


Splash  Shield  rx)R  Hopper. 


3W - Channels  rs>R  SuIrportin^  Operators 

IpT  \  N.  "Platform 

XT530,540  Or  560  \  a. 

1  Tower  Hopper.  \  \  .•  _  __  _ 

I  \  \  \  6  k  ig  -p.S.  Cable 

-~*50l  Thimble  &  Bracket  \  \ 


SOFt  Chutev3036 


51  Ft  Split  Steel  Boom. 


Tilting  Chute 


3G-Cu. Ft.  Capacity.  Reversible  Type  Elevator 
/  Bucket 


16  Bottom  5wivel  5heave 

^  B.S-16 


O  ^  *  ****j£?, 


Bulletin  No.  2J-E 


Counterweight  Plant 


Page  twenty-five 


5 eat  And  Top  Line.  Connection. 


nes  |  6M9  "RS.  Cable. 


'2-12'  SHEAVES. 


-10  Double.  Steel  Block. 


-4-Lines  2  6*19  "RS.  Cable. 


Ft  Chute 
-w  ZOQ2-H 


-\Q“  Single  Steel  Block.With  Becket. 


'OfT  Light  Counterweight  Chute+CL"5030 


Counterweight 


The  Lak  ewoo  d  Eng  ineeri  n  g—C  o  nip  any 

Cleveland,  U.  S.  A. 


Page  twenty-six 


The  Lakewood  Steel  Tower 


The  fundamental  idea  in  the  design  of  the  new  type  Lakewood  steel  tower  was  to  cut 
down  the  number  of  different  parts  required  for  the  tower,  thus  making  erection  easier 
and  quicker  and,  at  the  same  time,  develop  greater  strength  than  ever  heretofore  se¬ 
cured  for  standard  equipment. 

This  has  been  accomplished  with  the  result  that  the  new  Lakewood  steel  tower  offers 
greater  strength,  fewer  different  parts,  greater  flexibility,  greater  possibilities  as  to 
plant  layout  and  easier  and  quicker  erection  than  any  tower  on  the  market.  This  state¬ 
ment  can  be  quickly  proved  by  a  comparison  of  the  following  detail  specifications  cov¬ 
ering  the  Lakewood  steel  tower. 

THE  TOWER  The  standard  tower  is  made  up  of  a  top  and  bottom  section  with  as  many  intermediate 

MAKE  UP:  sections  as  desired  for  height.  Each  intermediate  section  is  15-ft.  high  and  is  divided 

into  two  panels  of  7JT  each.  The  top  and  bottom  sections  are  not  figured  as  adding 
height  to  the  tower.  All  intermediate  sections  are  interchangeable  in  parts 
and  position. 


MAXIMUM 

HEIGHT: 


BOLTS: 


BOTTOM 

SECTION: 


BOTTOM 

SHEAVE: 


The  standard  Tower  can  be  built  to  a  height  of  240-ft.  with  a  130-ft.  boom  counter¬ 
weight  plant,  tied  down  when  pouring  concrete. 


All  the  bolts  required  for  the  tower  are  furnished ;  H"  bolts  are  used  thruout. 

The  bottom  section  consists  of  four  heavy  angles  to  which  are  riveted  Yz"  plates  to 
provide  perfect  bearing  for  the  tower  without  increasing  the  number  of  shipping  units. 
Anchor  bolt  holes  are  provided  for  in  the  gusset  plates  and  angles  of  the  bottom 
section.  Any  intermediate  section  can  be  attached  to  this  bottom  section. 

A  16"  bottom  swivel  sheave  of  heavy  construction  is  furnished  for  the  base  of  the  tower. 
The  support  for  this  sheave  is  so  designed  that  the  sheave  can  be  put  at 
the  very  bottom  of  the  tower  or  at  the  first  panel  point,  up,  as  conditions 
demand.  This  takes  care  of  the  bottom  sheave  in  case  the  base  of  the  tower  is  put 
below  ground  level.  The  bottom  sheave  support  can  be  placed  on  either  side  of  the 
tower  desired. 


GIRTS: 


The  girts  are  angles.  Every  girt  on  the  tower  is  alike.  Each  girt  has  a  three- 
bolt  connection  at  each  end. 


DIAGONALS: 


Diagonals  are  angles.  Every  diagonal  member  on  the  tower  is  alike  and 
interchangeable,  and  as  with  the  girts,  each  has  a  three-bolt  connection. 


NOSE  BOARD:  A  15-ft.  section  of  nose  board  for  the  elevator  bucket  is  furnished  with  each  inter¬ 

mediate  section.  Angle  clips  are  provided  on  the  nose  board  for  attaching  it  to  the 
girt  angle.  All  nose  boards  are  interchangeable. 


ELEVATOR  The  elevator  bucket  has  36  cu.  ft.  water  level  capacity,  so  designed  that  it  can  be 

BUCKE  1  :  reversed  in  its  frame  and  dump  out  of  either  the  front  or  rear  of  the  tower. 

The  bail  contains  a  sheave  for  double  hoisting  line.  Weight  complete  1675  pounds. 


LADDER: 


A  pipe  ladder  is  provided  which  can  be  bolted  to  any  one  of  the  four  sides 
of  the  tower. 


Bulletin  No.  2 j-E 


Page  twenty-seven 


FRONT  CORNER 
POSTS : 


REAR  CORNER 
POSTS : 


ELEVATOR 

BUCKET 

GUIDES: 

GUY 

CONNECTIONS: 


The  Lakewood  Steel  Tower 

The  front  corner  posts  are  composed  of  two  angles  riveted  together  back  to  back, 
the  outside  angle  acting  as  the  sliding  frame  guide.  The  front  corner  posts  of  the 
tower  are  the  same  from  top  to  bottom. 

The  rear  corner  posts  are  composed  of  one  heavy  angle  and  are  the  same 
from  the  top  to  the  bottom  of  the  tower.  The  tower  is  so  designed  that 
where  the  plant  requires  it,  double  angle  legs  such  as  are  used  for  the  front 
corner  posts,  can  be  used  in  the  rear,  greatly  increasing  the  strength  of 
the  tower,  without  making  a  single  change  in  any  of  the  other  parts.  This 
change  which  can  be  made  in  the  field  where  conditions  require  it  makes 
it  possible  to  put  a  sliding  frame  plant  on  both  front  and  rear  of  the  tower; 
a  layout  advantage  which  is  sometimes  very  valuable,  especially  when 
considered  in  connection  with  the  reversible  elevator  bucket  which  is 
designed  for  use  in  this  tower. 


The  elevator  bucket  guides  consist  of  two  angles,  15  ft.  long,  gusseted  together  with 
angle  clips  for  connection  to  the  girts.  They  are  interchangeable  from  top  to 
bottom  of  the  tower  and  on  either  side  of  the  tower. 

The  intermediate  guy  connections  consist  of  a  set  of  girt  angles,  which  bolt  to  and 
on  the  outside  of  the  standard  girt  angles  at  any  panel  point.  These  guy  connection 
angles  contain  shackles  for  the  guy  lines  and  can  be  placed  at  any  panel 
point  of  the  tower  to  meet  job  conditions.  The  top  section  guy  connections  con¬ 
sist  of  heavy  ^4"  plates  across  the  corners  of  the  top  channels  of  the  tower  and  also 
include  shackles. 


The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  twenty-eight 


TOP  SHEAVES: 


CABLE  SEAT: 


BOOM 

COUNTER¬ 

WEIGHT 

PLANT: 

(See  Pages  8,  9) 


The  Lakewood  Steel  Tower 

For  the  hoisting  line,  two  16”  bronze  bushed  sheaves  are  included.  The  sheave 
support  is  so  arranged  that  these  sheaves  may  be  attached  to  either  side 
of  the  tower  desired. 

Shift  line  sheaves  for  the  sliding  frame  hoisting  line  are  also  provided  as  standard 
equipment. 

The  top  section  is  so  designed  that  a  seat  for  the  overhead  cable  on  continuous  line 
plants  is  a  part  of  the  section  and  comes  as  standard  equipment. 

This  seat  fits  into  the  standard  section ;  requires  no  special  holes  and  can 
be  installed  on  any  tower  in  the  field. 


The  type  of  plant  which  is  used  more  often  than  any  other  on  general  building  work 
is  the  boom  counterweight  plant.  In  the  past,  steel  towers  have  been  designed  to  take 
the  boom  counterweight  plant  with  the  provision  that  the  counterweight  section  must 
be  supported  when  pouring  concrete.  The  unusual  strength  and  rigidity  of  the 
Lakewood  steel  tower  makes  it  possible  to  use  the  boom  counterweight 
plant  on  it,  including  a  heavy  type  counterweight  which  can  be  tied  down 
during  concreting  operations  supporting  an  additional  30'  chute. 

This  is  the  big  feature  in  connection  with  the  boom  counterweight  plant,  because  it 
eliminates  the  support  for  the  counterweight  which  in  many  cases  is  very  awkward 
and  troublesome  to  handle. 


Bulletin  No.  2 J-E 


Page  twenty-nine 


The  Lakewood  Steel  Tower 


SLIDING 

FRAME: 


SIDE  PANELS 

SHIPPED 

ASSEMBLED: 


As  previously  stated,  the  sliding  frame  uses  as  guides,  the  outside  angles  of  the  front 
legs  of  the  tower.  A  short  steel  sliding  frame  is  provided  for  continuous  and  unit 
plant  installations,  while  a  long  steel  sliding  frame,  including  both  boom  seat  and 
top  line  connection,  is  provided  for  the  boom  plant.  These  frames  are  so  designed 
that  the  continuous  line  sliding  frame  becomes  the  intermediate  section  of 
the  long  steel  sliding  frame,  a  particularly  valuable  feature,  as  it  cuts  down  the 
number  of  units  required  to  make  up  a  flexible  chuting  plant  for  the  contractor. 

Sliding  frames  are  provided  with  a  channel  base  for  the  hopper  operator’s 
platform.  These  channels  can  be  attached  to  either  side  of  the  frame  desired. 

The  sliding  frame,  when  in  position  at  a  panel  point,  is  fastened  to  the  tower  by 
means  of  bolts  running  thru  slotted  holes  in  the  side  members  of  the  frame  and  the 
outside  angle  of  the  front  legs  of  the  tower. 

No  dumping  triggers,  aprons  or  baffle  plates  are  required  for  the  sliding 
frame.  A  splash  shield,  running  around  the  sides  of  the  hopper,  is  furnished  as 
standard  equipment.  All  sliding  frames  include  the  steel  blocks  which  are 
required  for  their  operation.  Any  size  of  type  “O”  Lakewood  tower  hopper 
can  be  used  with  the  standard  steel  sliding  frames. 

If  desired,  the  side  panels  of  the  tower  can  be  shipped  completely  riveted  up,  leaving 
as  loose  pieces,  only  the  front  and  rear  diagonals  and  girts,  which  means  still  faster 
erection.  Towers  will  not  be  shipped  this  way  unless  specified. 


Tower  Height 

Bottom  Section 

Intermediate  Section 

Top  Section 

Intermediate 

Guy  Connections 

Code 

Weight 

30-ft. 

1 

2 

1 

1  set 

Tache 

7,867 

45-ft. 

1 

3 

1 

1  set 

Tavern 

10,300 

60-ft. 

1 

■  4 

1 

2  sets 

Tango 

12,923 

75-ft. 

1 

5 

1 

2  sets 

Tame 

15,356 

90-ft. 

1 

6 

1 

2  sets 

Tazazo 

17,789 

105-ft. 

1 

7 

1 

3  sets 

Teacher 

20,412 

120-ft. 

1 

8 

1 

3  sets 

Teasel 

22,845 

135-ft. 

1 

9 

1 

3  sets 

Telescope 

25,278 

150-ft. 

1 

10 

1 

4  sets 

Temple 

27,901 

165-ft. 

1 

11 

1 

4  sets 

Tendon 

30,334 

180-ft. 

1 

12 

1 

4  sets 

Tena 

32,767 

195-ft. 

1 

13 

1 

5  sets 

Terrapin 

35,390 

210-ft. 

1 

14 

1 

5  sets 

Tarpon 

37,823 

225-ft. 

1 

15 

1 

5  sets 

Tacci 

40,256 

240-ft. 

1 

16 

1 

6  sets 

Tapi 

42,879 

Each  bottom  section  includes  a  16"  swivel  sheave  and  tilting  chute. 

Each  intermediate  section  includes  a  15-ft.  length  of  nose  board. 

Each  top  section  includes  two  16"  top  sheaves  and  two  shift  line  sheaves  for  the  sliding  frame  line. 
All  guy  connections  include  shackles  for  the  cable. 


The  Lakewood  Engineering  Company 

Cleveland,  U.  S.  A. 


Page  thirty 


Type  “O”  Elevator  Bucket  No.  828-S  For  No.  732  Steel  Tower 


One  of  the  most  unusual  and  valuable  features  of  the 
Lakewood  steel  tower  is  the  elevator  bucket.  This  bucket 
is  so  designed  that  it  is  reversible  and  can  be  dumped 
thru  either  the  front  or  the  rear  of  the  tower.  The  bucket 
is  of  the  nose  board  type,  which  eliminates  all  triggers, 
latches,  springs  and  rollers.  The  result  is  a  quick  dump¬ 
ing,  smooth  working  bucket  of  the  simplest  design  possible 
and  one  which  requires  a  minimum  of  attention  under 
strenuous  working  conditions. 

The  bucket  body  rides  on  two  rocker  castings,  bolted  to 
its  sides.  These  rocker  castings,  in  turn,  run  on  a  cast 
track  which  bolts  to  the  bottom  of  the  bucket  frame.  The 
bucket  is  positively  locked  into  the  frame  by  means  of  an 
angle  bolted  into  the  upper  part  of  the  frame  across  the 
top  of  the  rocker  casting.  This  angle  is  slotted  on  the 
bottom  so  that  when  the  bucket  dumps  forward,  the  end 
of  the  rocker  casting  will  catch  in  the  slot,  stopping  the 
bucket’s  travel.  When  returning  from  the  dumping  po¬ 
sition,  the  opposite  end  of  the  rocker  casting  catches  into 
this  same  notch,  thus  limiting  the  bucket’s  backward 
travel. 

By  unbolting  the  locking  angles  on  each  side,  the 
bucket  body  can  be  picked  up,  turned  around  and  headed 
to  dump  out  of  the  opposite  face  of  the  tower.  This 
change  can  be  made  in  an  hour,  a  feature  which,  when 
considered  with  the  possibility  of  mounting  a  sliding  frame 
plant  on  both  the  front  and  rear  of  the  Lakewood  steel 
tower,  opens  up  a  new  layout  possibility  never  before  se¬ 
cured  with  standard  equipment.  The  bucket  weighs  1675 
pounds  and  has  a  water  level  capacity  of  36  cubic  feet. 


Bulletin  No.  2 J-E 


Page  thirty-one 


Long  and  Short  Steel 
Sliding  Frames  for  the 
No.  732  Steel  Tower 

SLIDING  frames  for 
steel  towers  are  con¬ 
structed  to  run  on  angle 
guides  riveted  to  the  front 
corner  posts  of  the  tower. 
The  frame  is  moved  up  and 
down  the  tower  by  means  of 
a  cable  which  runs  over 
sheaves  on  top  of  the  tower 
to  the  hoisting  engine.  No 
blocks  are  required  for  the 
sliding  frame  as  sheaves  are 
mounted  in  the  top  section  of 
the  tower  and  in  the  top  part 
of  the  sliding  frame  to  elimi¬ 
nate  their  use. 

When  the  sliding  frame  is 
in  proper  position  on  the 
tower  for  pouring  concrete,  it 
is  fastened  to  the  tower  by 
means  of  bolts  running  thru 
slotted  holes  in  the  sliding 
frame  members  and  the  guide 
angles  on  the  tower.  The 
hoppers  on  the  frame  set  flush 
with  the  tower  and  are  equip¬ 
ped  with  splash  shields.  No 
dumping  triggers,  aprons  or 
latches  are  required  for  the 
elevator  bucket.  All  steel 
sliding  frames  are  equipped 
with  channels  which  can  be 
attached  to  either  side  of  the 
frame  to  form  a  base  for  an 
operator’s  platform. 

The  long  steel  sliding 
frame  is  used  for  the  boom 
counterweight  plants,  but  the 
center  or  hopper  section  of 
this  long  sliding  frame  forms 
the  short  steel  sliding  frame 
which  is  used  with  continuous 
line  or  straight  unit  chute 
plants.  This  center  section  is 
complete  in  itself.  No  steel 
sliding  frame  for  steel  towers 
require  blocks. 


The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  thirty-tiuo 


Lakewood  No.  503  Open  Steel  Boom 

THE  open  steel  boom  for  the  100-ft.  boom  counterweight  plant  is  furnished  with 
shackles  but  no  blocks  and  an  opening  is  provided  at  the  proper  point  for  the 
chute  to  pass  thru  as  shown  in  the  cut  beloW.  This  boom  is  for  either  the  steel 
or  wood  tower  plant  and  is  to  be  used  with  either  the  heavy  or  light  type  counter¬ 
weight  section.  Its  weight  complete  as  shown  is  1960  pounds.  This  boom  has  a 
capacity  of  12  tons  when  in  a  horizontal  position. 


Blocks  Required  for  Various  Types  of  Plants 


8"  Single  11/'  Single  10"  Double  12"  Single  12"  Double 
Plants  Tower  Steel  Steel  Steel  Steel  Steel 


Boom  Counterweight  Steel  1-J4"  cable  1— J4"  cable  1-J4"  cable  1-54"  cable  1-54”  cable 

Wood  .  1-J4"  cable  (  1-J4"  cable  2-54"  cable 

1  2-54"  cable 


Unit  Plant  Steel  .  1-54"  cable  1-54"  cable 

Wood  .  2-54”  cable  . 


Unit  Counterweight  Steel  .  1-54”  cable  1—54”  cable 

Wood  .  1-54"  cable  1-54"  cable 


Continuous  Line  Steel  No  Blocks  . 

_ Wood  .  2-54"  cable 

All  blocks  to  be  with  shackle  and  becket. 

All  blocks  should  be  diamond  steel  shell. 

Hook  blocks  should  not  be  used  on  chuting  plants. 


Cable  Requirements  for  Steel  Tower  Sliding  Frames  and  Buckets 

Height  of 
Tower 

r 

Single 

- Elevator  Bucket  Hoist— — - > 

Line  Double  Line 

f - Sliding  Frame - - - n 

Short  Steel  Sliding  Long  Steel  Sliding 

Frame  Frame 

60 

ft. 

130 

ft. 

185 

ft. 

190 

ft. 

165 

ft. 

75 

ft. 

160 

ft. 

230 

ft. 

250 

ft. 

240 

ft 

90 

ft. 

190 

ft. 

275 

ft. 

310 

ft. 

315 

ft. 

105 

ft. 

220 

ft. 

320 

ft. 

370 

ft. 

390 

ft. 

120 

ft. 

250 

ft. 

365 

ft. 

430 

ft. 

465 

ft. 

135 

ft. 

280 

ft. 

410 

ft. 

490 

ft. 

540 

ft. 

150 

ft. 

310 

ft. 

455 

ft. 

550 

ft. 

615 

ft. 

165 

ft. 

340 

ft. 

500 

ft 

610 

ft. 

690 

ft. 

180 

ft. 

370 

ft. 

545 

ft. 

765 

ft. 

195 

ft. 

400 

ft. 

590 

ft. 

730 

ft. 

840 

ft. 

210 

ft. 

430 

ft. 

635 

ft 

790 

ft. 

915 

ft 

225 

ft. 

460 

ft. 

680 

ft. 

850 

ft. 

990 

ft. 

240 

ft. 

490 

ft. 

725 

ft. 

910 

ft. 

1065 

ft. 

Cable  from 

bottom  of  tower  to  hoist  must  be  added  to  above  lengths. 

CABLE  FOR  BOOM  COUNTERWEIGHT  PLANT: 

From  top  of  sliding  frame  to  end  of  boom — 210  ft. 

From  top  of  sliding  frame  to  30  ft.  point  in  boom  chute — 90  ft. 
From  end  of  boom  to  counterweight — 90  ft. 

All  the  above  cable  should  be  54"  6x19  plow  steel. 


Bulletin  No.  2J-E 


Page  thirty-three 


Long  Steel  Sliding 
Frame  for  Wood 
Towers 

HE  Long  Steel  Sliding 


Frame  for  a  wood  tower  is 


held  in  place  on  the  tower 
by  steel  shoes  running  on  a  2  x  10 
timber,  bolted  to  the  sides  of  the 
front  corner  posts  of  the  tower. 
This  guide  timber  must,  of  course, 
project  far  enough  out  from  the 
corner  posts  to  allow  the  frame  to 
clear  all  bolt  heads  on  the  face  of 
the  tower.  When  in  position  for 
pouring  the  frame  is  held  firmly  in 
place  on  the  tower  by  fourteen 
clamps  or  is  lashed  to  the  tower. 
Any  size  of  Type  “O”  Hopper 
can  be  used  with  this  frame,  and 
the  horizontal  members  of  the 
frame  are  adjustable  to  the  widths 
of  towers  required  for  the  *4, 
24,  or  1-yard  Type  “O”  elevator 
buckets. 

The  frame  is  shipped  in  three 
sections  and  can  be  easily  erected 
or  dismantled  in  the  field. 

The  steel  blocks  required  for 
rigging  the  steel  sliding  frames  are 
10"  double.  One  should  be  fastened 
to  the  cat  head  of  the  tower  and 
the  other  to  the  ring  in  the  top  of 
the  sliding  frame.  The  fall  line 
runs  over  sheaves  on  the  top  of  the 
tower  to  the  hoisting  engine. 
One-half  inch  Plow  Steel  cable 
should  be  used  for  this  purpose. 

On  long  steel  sliding  frames  for 
either  wood  or  steel  towers  the 
boom  seat  and  peaking  line  con¬ 
nection  are  provided.  They  are 
designed  for  the  Lakewood  Steel 
Boom  No.  503  as  shown  on  page 
32.  The  first  section  of  chute  of 
a  boom  plant  passes  through  a 
5'  2"  opening  provided  in  the  steel 
boom  for  that  purpose. 


The  Lakewood  Engineering  Company 

Cleveland,  U.  S.  A. 


Page  thirty-four 


Lakewood  Unit  Counterweight  Plant 


THE  essential  differences  between  the  Unit  Counterweight  plant  and  the  Boom 
Counterweight  plant  lie  in  the  first  section  of  chute  and  the  sliding  frames.  In 
the  unit  plant  the  first  section  of  chute  is  made  heavier  and  trussed  in  such  fashion 
that  no  separate  boom  is  required.  A  head  line  of  cable  is  run  from  the  bail  at  the 
end  of  the  boom  to  the  cathead  of  the  tower,  eliminating  the  steel  boom  entirely. 

The  sliding  frame  for  the  unit  counterweight  plant  on  a  wood  tower  is  of  wood, 
strongly  trussed,  while  when  the  plant  is  used  on  a  steel  tower  the  sliding  frame  is  of 
steel.  Of  course,  as  there  is  no  separate  boom,  a  relatively  short  sliding  frame  is  re¬ 
quired  for  unit  counterweight  plants.  Which  means  the  plant  can  be  moved  more 
easily  up  and  down  the  tower.  The  boom  section,  or  first  section,  of  chute  is  made  in 
20,  30,  40  and  50  foot  lengths.  The  length  used,  of  course,  depends  on  the  type  and 
size  of  counterweight  selected.  The  plants  are  furnished  complete  with  the  exception 
of  cable  and  blocks  for  the  sliding  frame. 

Easy  to  erect  and  somewhat  lighter  in  weight  than  the  boom  counterweight  plant, 
the  unit  counterweight  plant  provides  a  flexible  economical  and  speedy  method  for 
placing  concrete.  When  used  with  50  foot  counterweights  on  a  wood  tower,  we  rec¬ 
ommend  the  standard  Lakewood  tower  design,  using  8"  x  8"  corner  posts.  When  used 
with  the  smaller  counterweight  section,  a  wood  tower  with  6"  x  6"  corner  posts  will 
meet  all  conditions.  The  tower  of  course  should  be  bolted. 


Bulletin  No.  2J-E 


Page  thirty-five 


Lakewood  Unit  Plant 


THE  Lakewood  unit  plant,  designed  for  use  on  either  wood  or  steel  towers,  con¬ 
sists  of  a  tower  hopper  mounted  on  a  sliding  frame,  one  section  of  trussed  chute, 
which  acts  as  a  boom,  and  one  additional  section  of  chute.  This  type  of  plant  can 
be  easily  and  quickly  moved  up  and  down  the  tower,  and  makes  a  very  compact,  easily 
operated  plant  for  the  smaller  jobs.  The  unit  plant  is  furnished  in  40,  60,  80  and  100- 
foot  sizes. 

Many  combinations  can  be  worked  out,  as  any  size  of  hopper  from  20  to  60  cubic 
feet  working  capacity,  and  any  radius  of  operation  can  be  secured  with  these  plants, 
depending,  of  course,  on  the  size  of  mixer  used  and  the  area  to  be  covered  with  the 
chutes.  Assume  for  example  an  area  160  x  90-ft.  where  it  is  possible  to  set  up  at  the 
center  of  the  long  side.  An  80-ft.  unit  plant  made  up  of  a  50-ft.  boom  section  and  a 


The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  thirty-six 


Lakewood  Unit  Plant,  60  Ft.  Radius 


30-ft.  plain  end  section  would  be  just  the  outfit  for  the  work — no  supports  would  be 
required  except  at  the  end  of  the  30-ft.  section  and  the  plant  could  be  easily  handled 
from  point  to  point  when  pouring. 

It  is  generally  advisable  to  make  up  a  100-ft.  plant,  using  a  50-ft.  boom  section 
and  an  additional  30-ft.  and  20-ft.  elbow  section,  supported  at  the  30-ft.  point  rather 
than  using  two  50-ft.  sections  because  the  first  plant  can  be  handled  so  much  more 
easily  than  a  trussed  50-ft.  section  and  it  will  cover  the  area  with  fewer  moves  of  the 
entire  plant.  Furthermore,  the  20-ft.  and  30-ft.  light  counterweight  can  be  attached  to 
the  end  of  the  unit  plant  boom  section  without  making  any  changes  whatever  in  the 
boom  section  itself.  In  a  word,  these  smaller  plants  have  all  the  advantages  of  the 
larger  Lakewood  plants  but  being  lighter  and  lower  in  first  cost,  they  apply  particu¬ 
larly  well  to  the  smaller  jobs.  They  can  be  easily  and  quickly  assembled  in  the  field 
from  standard  erection  drawings.  When  using  the  unit  plants  on  a  wood  tower,  we 
strongly  recommend  the  standard  Lakewood  wood  tower  design  as  shown  in  this 
bulletin. 


Component  Parts  60  Ft.  and  80  Ft.  Unit  Plants 


First  Section  Second  Section 


Plant 

Number 

Code  Word 

/ - —Receiving  Hopper - , 

Number  Working  Capacity 

f - Boom 

Number 

Chute - 

Length 

, - Standar: 

Number 

J  Chute - > 

Length 

Total 

W  eight 

0-2321 

Cinder 

521 

20  cu.  ft. 

0-3032 

30  ft. 

3030 

30  ft. 

3111  lbs. 

0-2331 

Camp 

531 

30  cu.  ft. 

0-3032 

30  ft. 

3030 

30  ft. 

3171  lbs. 

0-2341 

Canter 

541 

40  cu.  ft. 

0-3032 

30  ft. 

3030 

30  ft. 

3258  lbs. 

0-2361 

Calm 

561 

60  cu.  ft. 

0-3032 

30  ft. 

3030 

30  ft. 

3641  lbs. 

0-2421 

Candy 

521 

20  cu.  ft. 

0-4032 

40  ft. 

40308 

40  ft. 

3866  lbs. 

0-2431 

Canister 

531 

30  cu.  ft. 

0-4032 

40  ft. 

40308 

40  ft. 

3926  lbs. 

0-2441 

Cannibal 

541 

40  cu.  ft. 

0-4032 

40  ft. 

40308 

40  ft. 

4013  lbs. 

0-2461 

Calumet 

561 

60  cu.  ft. 

0-4032 

40  ft. 

40308 

40  ft. 

4396  lbs. 

Bull  el  in  No.  2J-E 


Page  thirty-seven 


Wood  Towers 

WHETHER  using  wood  or  steel  towers,  the  rule  for  determining  the  maximum 
height  of  the  tower  required  is  as  follows: 

Take  the  maximum  height  at  which  concrete  is  to  be  poured  above  the 
tower  base  and  add  to  this  one-third  of  the  distance  through  which  the  concrete  is  to 
be  chuted,  which  takes  care  of  the  necessary  fall  in  the  chute  line  and  to  that  sum  add 
20  to  30  feet  for  the  necessary  tower  headroom.  The  addition  for  headroom,  of  course, 
depends  entirely  upon  the  type  of  plant  used. 

In  building  a  wood  tower,  carefully  constructed  templates  should  be  made  exactly 
in  accordance  with  the  tower  drawings.  These  templates  should  contain  the  exact  lo¬ 
cation  of  all  bolt  holes.  If  possible,  each  timber  should  be  marked  with  a  number.  In 
other  words,  the  corner  posts  should  all  bear  one  number,  the  cross  braces  another, 
and  so  on.  This  will  shorten  materially  the  time  consumed  in  erecting  the  tower.  One 
of  the  most  important  things,  of  course,  in  erecting  any  tower  is  guying.  When  the 
tower  has  reached  a  height  of  35  or  40  feet  the  first  set  of  guys  should  be  attached. 
Turn-buckles  with  shackles  should  be  placed  at  the  anchor  ends  of  the  guy  line.  These 
turn-buckles  make  it  possible  to  take  up  slack  in  the  guys  when  plumbing  the  tower, 
and  the  shackles  make  it  possible  to  slip  a  guy  for  the  purpose  of  allowing  the  boom  to 
swing  or  for  clearing  obstructions.  The  upper  end  of  the  guy  is  attached  by  taking  a 
couple  of  turns  about  the  corner  post  and  clamping  the  cable. 


Guy  Lines  and  Clips  Required  for  Towers 


Total  Lgth. 
Guying  Wire  Rope 
Point  For  1  Set 
Above  (4  Guys) 
Ground  45°  Angle 


Tower  Heights  and  Lengths  of  Guy  Sets  in  Feet 
- 20'  Added  to  Each  Line  for  Anchorage - 


Feet  Feet  40  50  60  70  80  90  100  110  120  130  140  150  160  180  200  220  250 


30  247  ...  247  .  247  . 

40  308  308  ...  308  308  308  _  308  308  308  308  308  308  308  308  308  308  308 

50  364  ...  364  . 

60  420  .  420  .  420  . 

70  476  .  476  . 

80  532  .  532  ....  532  532  532  532  532  532  532  532  532  532  532 

90  588  .  588  . 

100  648  .  648  .  . 

110  702  .  702  _  702  . 

120  760  .  760  _ '  760  760  760  760  760  760  760 

130  816  .  816  . 

140  875  .  875  . 

150  928  .  928  . 

160  984  .  984  984  984  984  984 

170  1044  . 

180  1097  .  1097  . 

190  1152  .  1152  1152 

200  1208  .  1208  . 

220  1324  .  1324  1324 

250  1496  .  1492 


Total  Length  of 
Guy  Rope  Re¬ 
quired  . 308  611  728  784  840  1255  1488  1542  1600  2358  2475  2528  2584  3681  3792  5060  6556 


No.  Sets  of  Guys 

Required  .  1  2  2  2  2  3  3  3  3  4  4  4  4  5  5  6  7 


Clips  Required — 6 

Clips  per  Guy.  ..  24  48  48  48  48  72  72  72  72  96  96  96  96  120  120  144  168 


The  Lakewood  Engineering  Company 

Cleveland,  U.  S.  A. 


Page  thirty-eight 


Type  “L”  Elevator  Buckets  for  Wood  Towers 
or  No.  731  Steel  Tower 


THE  Type  “L”  Elevator  Bucket  is  a  heavy, 
sturdy  bucket  of  the  latch  and  trigger  type, 
built  especially  for  the  No.  731  steel  tower 
but  also  can  be  used  with  a  wood  tower. 
The  bucket  is  balanced  to  dump  forward,  but  is 
held  in  the  vertical  or  hoisting  position  by  a  spring 
latch  on  the  side  of  the  bucket.  On  dumping,  the 
bucket  first  strikes  a  sliding  iron  on  the  tower  hop¬ 
per  apron,  which  forces  the  bucket  backward,  re¬ 
lieving  the  load  on  the  latch  at  the  time  it  is  re¬ 
leased  by  a  block  on  the  tower  guide,  allowing  the 
bucket  to  dump  into  the  hopper.  When  the  bucket 
is  in  the  dumping  position  it  has  a  discharge  angle 
of  45  degrees.  This  type  of  bucket  can  be  made  to 
dump  at  any  point  by  changing  the  position  of  the 
block  on  the  tower  guide  and  the  dumping  angle. 
The  No.  651-S  is  the  14  cu.  ft.  bucket  for  the  steel 
tower. 


No. 

Code 

Word 

Capacity 

Working 

Cu.  Ft. 
Water 
Level 

Wt. 

Lbs. 

A 

B 

c 

D 

E 

F 

G 

H 

J 

L 

N 

o 

p 

R 

651 

Wobe 

14 

17 

762 

15tt 

27* 

3654 

31* 

4154 

47 

36^4 

1514 

57  54 

3 

854 

6 

40  54 

354 

651 

Woe 

28 

31 

1375 

1854 

3254 

5054 

36  54 

55  54 

60  Yi 

45 

17 

6354 

3 

954 

754 

4754 

454 

651-S 

Tick 

14 

17 

850 

1854 

3254 

50  54 

2111 

55  54 

60  54 

.... 

5614 

3 

954 

754 

454 

No.  651  Lakewood 


Elevator  Bucket 


Dimensions 


Bulletin  No.  2J-E 


Wood  Tower  for  Type  “O”  Elevator  Buckets 


Page  thirty-nine 


Dimensions  of  Wood  Tower 
For  Use  with  Type  “O”  Elevator  Buckets 


r — Elevator  Buckets—^ 
Working 
Capacity 
No.  Cu.  Ft. 

nensions,  Inc 
F 

f 

A 

B 

C 

D 

E 

G 

H 

J 

K 

808 

8 

25 

40 

24 

50  J4 

40  5/ 

64% 

513% 

54 

743% 

81% 

814 

14 

30 

46 

27 

56  % 

48% 

70% 

59% 

60 

843% 

90% 

822 

22 

33% 

50 

30 

60  % 

543% 

743% 

653% 

66 

93 

97% 

828 

28 

33% 

52 

30 

62  % 

54J4 

763% 

653% 

66 

93 

983% 

835 

35 

38% 

52 

32 

62% 

61% 

76% 

723% 

72 

102% 

102% 

860 

60 

45% 

59^4 

36 

695/s 

72% 

84 

83% 

NOTE:  Dimensions  given  in  above  table  are  for  dressed  timber.  Make  allowance  if  rough  timber  is  used. 

A,  B  and  C  must  not  be  varied. 

For  complete  wood  tower  details,  ask  for  Blue  Print  No.  A-l. 

The  drawings  and  tables  on  this  page  give  general  information  concerning  the  wood  tower  recommended 
for  use  with  the  Lakewood  Type  “O”  Elevator  Buckets. 


The  Lakewood  Engineering  Company 

Cleveland,  JJ.  S.  A. 


Page  forty 


Lakewood  Type  “O”  Elevator  Buckets 

For  Use  With  Wood  Towers 


THE  Type  “O”  Elevator  Buckets 
are  for  use  with  wood  towers  only. 
They  are  simple  in  operation, 
have  few  working  parts  and  are  as  light 
as  is  consistent  with  good  design.  The 
capacities,  both  working  and  water 
level,  are  given  for  the  various  sizes  on 
the  opposite  page.  The  bucket  is  bal¬ 
anced  to  dump  forward  and  is  held  in 
the  vertical  or  hoisting  position  by  slid¬ 
ing  against  a  nose  board  in  the  face  of 
the  tower.  A  heavy  casting  is  placed 
on  the  nose  of  the  bucket  for  this  pur¬ 
pose.  The  Type  “O”  Bucket  can  be 
made  to  dump  at  any  point  by  remov¬ 
ing  a  section  of  the  nose  board.  In 
dumping,  this  bucket  pivots  about  two 
points  and  the  arm  supporting  the  first 
pivot  point  allows  the  bucket  to  reach 
through  the  face  of  the  tower  and  over 
the  tower  receiving  hopper,  attaining 
a  45  degree  discharge  angle. 


Bulletin  No.  2 j-E 


Page  forty-one 


Lakewood  Type  “O”  Elevator  Buckets 

For  Use  With  Wood  Towers 


Type  “O”  Elevator  Bucket  Capacities  and  Dimensions 


No. 

Code 

Word 

Capacity 

Working 

Cu.  Ft. 
Water 
Level 

Wt. 

Lbs. 

A 

B 

C 

D 

E 

F 

G 

H 

I 

J 

K 

L 

M 

N 

808 

Wade 

8 

ii 

400 

12 

22 

14 

28 

35% 

38  * 

15 

6 

49%2 

3 

28 

30^4 

16 

2 

814 

Wake 

14 

20 

510 

i  m 

267% 

16 

34 

41% 

44* 

18 

8 

58 

3 

34 

36% 

18 

2 

822 

Wale 

22 

28 

650 

17% 

30% 

18 

38 

45M 

48  A 

24 

8 

64% 

3 

38 

40% 

20 

2 

828 

Wane 

28 

30 

670 

17% 

10% 

18 

38 

47% 

50* 

24 

8 

64^> 

3 

38 

42% 

20 

2 

835 

Wed 

35 

40 

840 

im 

35 

21 

44 

47% 

50* 

30 

8 

72% 

3 

44 

42% 

22 

2 

860 

Wedding 

60 

66 

1710 

24 

42 

18 

53%> 

54 

37% 

36 

8 

79% 

4 

53% 

48 

17% 

3 

800 

Win 

50 

Tilting  Chute  for  feeding  Type  “ 

O” 

Elevator  ’ 

Buckets. 

Cable  Sizes  and  Horse  Power  Required 
For  Operating  Type  “O”  Elevator  Buckets 


t— - —Size  of  Hoisting  Lines - - — — \ 

, - Elevator  Buckets - ,  , - Hoisting  Speeds  Single  Line - ,  C.  C.  S.  Wire  Rope  Plow  Steel  Wire  Rope 

Total  Weight  100  Ft.  150  Ft.  200  Ft.  300  Ft.  , — -6  Strands,  19  Wires- — N  , — -6  Strands,  19  Wires- — , 

No.  Bucket  &  Load  per  Min.  per  Min.  per  Min.  per  Min.  Single  Line  Double  Line  Single  Line  Double  Line 


808 

1600 

r 

7 

—  Horse  Power  Required,  Steam  — 

10  13 

20 

% 

% 

% 

814 

2610 

11 

16 

21 

32 

% 

% 

%  % 

822 

3950 

16 

24 

32 

48 

5A 

% 

%  % 

828 

4900  — 

-  20 

30 

40 

60 

Vs 

% 

A  % 

835 

6100 

25 

38 

50 

75 

% 

% 

%  % 

860 

10700 

43 

65 

86 

130 

l 

% 

%  % 

Horse  power  required  is  estimated  on  the  basis  of  25,000  pounds  lifted  one  foot  in  one  minute,  instead  of  the  theo¬ 
retical  basis  of  33,000  pounds  lifted  one  foot  in  one  minute. 

The  figures  tabulated  are  practical  and  safe  and  apply  when  steam  power  is  used.  When  electric  power  is  used  add 
about  25%,  and  gasoline  power  50%  to  the  horse  power  required. 


The  Lakewood  Engineering  Company 

Cleveland,  U.  S.  A. 


Page  forty-two 


Type  “O”  Tower  Hoppers  and  Wood  Sliding  Frames 

For  Use  With  All  Type  “O”  Plants  On  Wood  Towers  Except  Counterweight  Plants 


THE  Type  “O”  Tower  Hopper  can  be  attached 
to  the  tower  direct  or  mounted  on  a  sliding 
frame  separate  from  the  tower.  In  wood  tower 
construction  a  2x10  must  be  attached  on  each  side  of 
the  front  corner  posts  of  the  tower,  extending  out  far 
enough  in  front  of  the  tower  to  allow  the  sliding 
frame  to  clear  the  bolts  on  the  cross  braces.  This 
provides  a  smooth  track  for  the  sliding  frame.  With 
the  hopper  mounted  on  a  sliding  frame,  the  unit 
can,  of  course,  be  shifted  to  any  desired  elevation  on 
the  tower  with  the  minimum  amount  of  time  and 
labor.  There  is  a  certain  relationship  between  the 
size  of  the  mixer,  size  of  elevator  bucket  and  size 
of  hopper,  which,  in  general,  may  he  stated  as  fol¬ 
lows:  The  working  capacity  of  the  elevator  bucket 
should  correspond  with  the  wet  batch  capacity  of 
the  mixer.  The  tower  hopper  should  be  about  50 
per  cent  greater  in  working  capacity  than  the  eleva¬ 
tor  bucket.  Both  working  and  water  level  capacity 


Thimble  and  Bracket  for  attaching  Type  “O”  Chute 
Sections  and  “O”  Unit  Plants  to  Tower.  No.  501. 
Code  Word  Cane.  Sliding  Frame  only.  No.  500. 
Code  Word  Clasp.  In  ordering  a  thimble  and 
bracket  always  state  size  of  hopper  with  which  it 
is  to  be  used. 


are  given  in  the  tables  on  elevator  buckets  and  tower 
hoppers. 

The  Type  “O”  Tower  Hopper  will  work  with 
any  elevator  bucket  which  will  discharge  outside  of 
the  tower,  but  it  is  made  particularly  for  use  with 
Type  “O”  chute  sections,  as  the  thimble  and  bracket 
for  connecting  with  the  elbow  fits  up  snugly  under 
the  discharge  gate  of  the  hopper.  This  hopper  is 
made  of  12  gauge  steel  for  the  20  and  30  cubic  foot 
capacities  and  of  10  gauge  steel  for  the  larger  sizes. 
The  top  is  reinforced  with  2-inch  angles.  The  sides 
of  the  hopper  are  sloped  to  fit  an  8x12  inch  radial 
discharge  gate  made  of  sheet  steel  with  malleable 
iron  sides.  This  gate  can  be  operated  from  either 
side  of  the  tower  by  a  lever  with  an  extension 
handle. 

The  width  of  the  hopper  remains  the  same  for  all 
capacities.  The  advantage  of  this  is  that  the  center 
of  gravity  of  the  hopper,  full  or  empty,  will  be  as 
close  to  the  tower  as  possible. 


Bulletin  No.  2j-E 


Page  forty-three 


Type  “O”  Tower  Hopper  and  Wood  Sliding  Frames 

For  Use  With  All  Type  “O”  Plants  On  Wood  Towers  Except  Counterweight  Plants 


No. 


Code  Word 


Weights,  Capacities  and  Dimensions 


Cu.  Ft. 

Capacity  Water 

Working  Level  •  Weight  ABC 


D 


E  F 


521 

Cathedral 

20 

28 

1350 

56 

6 

30 

59  14 

51  % 

4514 

531 

Cedar 

30 

40 

1400 

56 

15 

27 

59  14 

58J4 

3814 

541 

Cypress 

40 

47 

1560 

72 

12 

30 

7SV& 

5814 

3814 

561 

Church 

60 

61 

1625 

72 

21 

30 

75  7/s 

66J4 

3014 

Hopper  gates  on  all  sizes  Tower  Hoppers  8"  x  12". 


The  Lakewood  Engineering  Company 

Cleveland,  U.  S.  A. 


Page  forty-four 


Type  “O”  Tower  Hoppers  and  Wood  Sliding  Frames 

For  Use  With  Unit  Counterweight  Plants  On  Wood  Towers 


WHERE  a  Unit  Counterweight 
Plant  is  used  a  reinforced  slid¬ 
ing  frame  is  required.  This 
sliding  frame  is  longer  and  the  thimble 
and  bracket  for  connecting  with  the 
chute  section  is  much  heavier  in  design 
than  the  one  used  with  unit  or  continu¬ 
ous  line  plants.  In  other  words,  it  is 
so  designed  that  it  receives  and  dis¬ 
tributes  more  evenly  over  the  tower  the 
increased  thrust  due  to  the  use  of 
heavier  chute  sections.  The  distinction 
in  type  numbers  is  made  by  the  addi¬ 
tion  of  the  letter  C.  For  example,  a 
sliding  frame  for  a  Unit  Counter¬ 
weight  Plant  is  designated  by  the  num¬ 
ber  500-C.  The  thimble  and  bracket 
as  501-C.  A  unit  counterweight  plant 
using  the  CL  2030  or  CL  3030  does 
not  require  this  type  of  sliding  frame. 


Thimble  and  Bracket  for  at¬ 
taching  Type  “O”  Counter¬ 
weight  Unit  Plants  to  Tower. 
No.  501-C.  Code  Word 
COMICAL. 

Sliding  Frame  only  for  Coun¬ 
terweight  Unit  Plants.  No. 
500-C.  Code  Word  CAFE. 


Bulletin  No.  2j-E 


Page  forty-five 


Type  “O”  Tower  Hoppers  and  W  ood  Sliding  Frames 

For  Use  With  Unit  Counterweight  Plants  On  Wood  Towers 


Weights,  Capacities  and  Dimensions 


No. 

Code  Word 

Capacity  Cu.  Ft. 

Working  Water  Level 

Weight 

A 

B 

C 

E 

E' 

F 

521-C 

Cimon 

20 

28 

2180 

56 

6 

30 

51^4 

57  J4 

29H 

531-C 

Cinch 

30 

40 

2240 

56 

15 

27 

57J4 

58  Vs 

29H 

541-C 

Cipher 

40 

47 

2400 

72 

12 

30 

57  54 

58H 

293/s 

561-C 

Circle 

60 

61 

2470 

72 

21 

30 

.... 

Hopper  gates  on  all  sizes  Tower  Hoppers  8"xl2". 


The  Lakewood  Engineering  Company 

Cleveland ,  U.  S.  A. 


Page  forty-six 


Lakewood  Chute  Units 


THE  LAKEWOOD  chute  section  is  14  inches  wide  inside  and  8*4  inches  deep,  wide  open,  half  round, 
type  which  offers  the  least  frictional  resistance  to  the  flow  of  the  concrete.  Standardization  of  LAKE- 
WOOD  chute  parts  allows  the  manufacture  and  stocking  of  sufficient  finished  work  to  make  prompt 
deliveries,  with  the  further  advantage  to  the  contractor  of  being  able  to  change  the  type  of  his  chutes  in  the 
field,  with  the  addition  or  interchange  of  necessary  parts. 

All  chutes  are  manufactured  in  sections  10  and  20  feet  long,  of  No.  12  gauge  sheet. 

The  standard  chute  sections  are  reinforced  along  both  sides  with  2x2xj4"  angles  while  the  boom 
chute  sections  have  2 34  x  2J2>  x  TV'  angles.  In  both  cases  these  angles  are  tied  together  with  wide  cross  plates. 
The  sheets  are  the  wearing  surface  and  are  not  depended  upon  for  strength.  Malleable  iron  connection 
flanges  are  riveted  to  the  end  of  each  chute  section.  Different  combinations  of  these  sections  are  bolted  to¬ 
gether  to  form  sections  of  chute  in  multiples  of  10  feet  in  length,  up  to  50  feet.  Struts  and  truss  rods  are 
likewise  standardized  for  the  reinforcement  of  the  longer  sections.  Either  Type  “O”  or  Type  “L”  in  any 
length  of  chute  section  is  assembled  from  standard  parts.  All  parts  are  interchangeable. 


Lakewood  Flanged  Joint  bolted  together. 


Bulletin  No.  2J-E 


Page  forty-seven 


Lakewood  Type  “O”  Chute  Connections 


THERE  are  two  types  of  chute  connections.  One  for  continuous  line  chute  where  no  change  in  direction 
is  required  nor  swiveling  action  necessary,  and  one  for  boom,  unit  and  continuous  line  plants  where 
swiveling  is  a  necessary  requirement.  A  continuous  line  chute  connection  is  formed  by  the  addition 
of  a  No.  6  joint  to  the  discharge  end  of  a  chute  section.  The  apron  of  the  joint  rests  on  the  receiving  end  of 
the  following  chute  section.  The  two  sections  are  tied  eogether  with  5/^  x  5f/^"  bolts  passed  through  7/%” 
holes  in  the  flanges.  This  joint  provides  the  necessary  flexibility  for  a  line  of  continuous  chute  and  at  the 
same  time  does  not  interrupt  the  flow  of  the  concrete. 

The  LAKEWOOD  elbow  chute  connection  meets  every  requirement  where  swiveling  action  is  neces¬ 
sary.  The  No.  2  elbow  is  attached  at  the  discharge  end  of  the  chute.  A  loose  trunnion  ring  of  cast  steel 
with  two  heavy  lugs  rests  upon  a  cast  steel  flange,  bolted  to  the  lower  end  of  the  elbow.  This  trunnion  ring 
has  a  full  circle  swing.  The  No.  3  elbow  is  attached  at  the  receiving  end  of  the  chute.  The  top  is  rein¬ 
forced  with  steel  ring.  Two  angle  ears  are  riveted  opposite  each  other  and  on  the  outside  of  the  elbow. 
These  ears  pass  up  on  each  side  of  the  lugs  in  the  trunnion  ring  of  the  No.  2  elbow  and  a  bolt  passed  through 
them  over  the  lug,  which  makes  the  connection  between  the  two  sections  of  chute.  On  account  of  the  two 

point  support  there  is  no  chance  for  the 
chute  to  tip  sideways  and  spill  the  concrete. 
The  full  circle  action  is  obtained  in  the 
trunnion  ring  and  vertical  movement 
through  the  bolt  riding  on  the  trunnion 
lugs.  All  working  parts  are  on  the  out¬ 
side,  leaving  the  inside  free  and  open. 
There  is  no  possibility  of  the  concrete  clog¬ 
ging.  The  elbows  are  full  circle  section 
and  have  twice  the  capacity  of  the  chute 
itself. 

No.  6  Joint 
Code  Word 
Clap 

Each  No.  6  joint 
includes  two  chute  hangers. 

See  section  on  continuous  line  chutes. 


The  Lakewood  Engineering  Company 

Cleveland,  U.  S.  A. 


Page  forty-eight 


Lakewood  Type  “L”  Chute  Connections  and  Tower  Hoppers 


/Yapper  ^Support- 


\~P- 


/r'o/tp  /f// open  Aro/es  are 
/or  4  &A  /As 


No.  5  Apron 
Code  Word 
Cicero 


WHEN  Lakewood  chuting  equipment  was 
first  developed,  the  type  of  chute  connec¬ 
tion  used  was  similiar  to  that  shown  on 
this  page.  The  No.  5  apron  is  attached  at  the 
discharge  end  of  the  chute  section  ;  a  heavy  bolt 
hook  passes  thru  it  and  swivels  on  cross  angles  at 
the  top  of  the  apron.  This  apron  deflects  the 
concrete  into  the  square  hopper  of  the  following 
chute  section.  The  No.  4  square  hopper  is  at¬ 
tached  to  the  receiving  end  of  the  chute  section. 
A  standard  chute  hanger,  located  about  midway 
of  the  hopper,  rests  in  the  hook  of  the  apron. 
Vertical  movement  is  obtained  with  the  rocking 
of  the  hanger  in  the  hook  and  full  circle  swing 
in  the  swiveling  of  the  hook.  This  type  of  con¬ 
nection  has  been  largely  replaced  by  the  Type 
“O”  Lakewood  chute  connection,  but  it  is  still 
required  for  replacements  and  additions  to  old 
Lakewood  chute  plants.  For  connecting  the 
Type  “L”  section  into  a  Type  “O”;  one  section 
is  used  with  a  No.  4  hopper  receiving  end  and 
No.  2  hopper,  discharging  end,  as  indiacted  by 
the  No.  3042,  or  if  connecting  a  Type  “O”  into 
a  Type  “L”,  one  section  of  the  No.  3  elbow  at 
its  receiving  end  is  used  with  the  No.  5  apron 
on  the  discharge  end  as  indicated  by  the  No. 
3035.  All  Lakewood  chute  sections  are  punched 
so  that  either  Type  “L”  or  Type  “O”  chute  con¬ 
nections  can  be  used.  In  using  the  Type  “L” 
chute  connection  on  the  lead  off  chute  from  the 
hopper,  it  is  necessary  to  use  the  Type  “L” 
hopper  of  the  type  shown,  including  the  chute 
support.  This  hopper  is  of  the  extended  gate 
type  and  is  of  very  heavy  construction.  It  has 
a  grout  tight  gate,  14"  x  14"  and  is  built  in 
capacities  of  14,  28,  and  42  cubic  feet. 


No.  CS 

Type  “L”  Chute  Support 
Code  Word  IVinner 


Dimensions  No.  702  Tower  Hopper 


No. 

Code 

Word 

Capacity 

Working 

Cu.  Ft. 
Water 
Level 

Wt. 

A 

B 

C 

D 

E 

F 

G 

H 

J 

N 

p 

Q 

R 

702 

Wisdom 

14 

18 

582 

44^ 

42 

47  54 

48 

1  7Ya 

2ii 

2354 

3 

4854 

854 

1911 

1054 

5054 

702 

Wack 

28 

32 

765 

53 

54  H 

61 54 

61 H 

1654 

2ii 

2254 

3 

4954 

i3  y& 

19A 

10}4 

59  y4 

Bulletin  No.  2  J-E 


Page  forty-nine 


Lakewood  Type  “O”  Standard  Chute  Sections 


No.  1032 


i 


AL 


LL  Lakewood  Chute  Sections  are 
numbered.  The  first  two  figures 
indicate  the  length,  the  third 
figure  indicates  the  connection  at  the 
receiving  end,  the  fourth  the  connec¬ 
tion  at  the  discharge  end,  and  the  fifth 
figure,  if  used,  indicates  the  truss  rods; 
thus,  the  No.  3032  indicates  a  section 
30  feet  long  with  a  No.  3  elbow  at  the 
receiving  end  and  a  No.  2  elbow  at  the 


Sec. 

Code  W ord 

Length 

Receiving  End 

Discharge  End 

Truss  Rods 

Weight 

1032 

Constable 

10 

No.  3  Elbow 

No.  2  Elbow 

None 

341 

2032 

Conway 

20 

No.  3  Elbow 

No.  2  Elbow 

None 

509 

3032 

Corday 

30 

No.  3  Elbow 

No.  2  Elbow 

None 

708 

40328 

Cousin 

40 

No.  3  Elbow 

No.  2  Elbow 

No.  8 

1063 

50329 

Cunard 

50 

No.  3  Elbow 

No.  2  Elbow 

No.  9 

1464 

The  Lak  eu'ood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  fifty 


Lakewood  Continuous  Line  Chutes 

THE  LAKEWOOD  continuous  line  chutes  are  made  in  lengths  of  ten,  twenty  and 
thirty  feet,  with  a  No.  6  joint  at  the  discharge  end.  No  connection  is  required  at 
the  receiving  end  as  indicated  by  the  “zero”  for  the  third  figure  in  the  section 
numbers. 

Continuous  line  chutes  are  suspended  from  overhead  cables.  It  is  general  practice 
to  use  a  6  inch  double  wood  block  above  and  6  inch  single  wood  block  below.  I  hree- 
quarter  inch  hemp  rope  is  preferred,  as  it  is  much  easier  in  the  hands  of  the  workmen 
and  stretches  less  than  smaller  rope  under  the  strain  Trolleys  can  be  used  to  very  good 
advantage  on  the  suspended  cable  for  support  of  the  blocks.  When  trolleys  are  used 
the  chutes  can  be  run  out  on  the  cable  from  one  end  of  the  line  with  a  line  from  the 
hoisting  engine. 

The  suspending  cable  should 
not  be  stretched  tight,  as  this 
puts  a  strain  on  the  cable,  in 
addition  to  the  load  of  the  chute. 

See  table  on  page  54  for  the  size 
of  suspension  cable  for  continu¬ 
ous  line  chute  plants,  etc. 

Wherever  it  is  necessary  to 
distribute  concrete  in  two  direc¬ 
tions  from  the  tower  hopper, 
using  continuous  line  chute  a 
Type  “O”  two-way  hopper 
switch  is  required.  This  switch 
is  fastened  underneath  the  tower 
hopper  and  the  continuous  line 
chute  elbows  are  connected  to  it 
as  shown  in  the  cut. 

If  concrete  is  to  be  distributed 
at  two  or  more  points  from  the 
same  continuous  line  chute,  a  line  gate,  as  shown  on  the  opposite  page,  must  be  placed 
in  the  line.  Additional  chute  can  be  attached  to  the  line  gate  or  a  flexible  chute  hop¬ 
per  can  be  attached  and  the  concrete  dropped  to  the  forms.  This  line  gate  is  built  into 
the  center  of  a  10  ft.  standard  chute.  To  the  bottom  is  fastened  a  standard  trunnion 
ring  for  attaching  an  elbow  or  a  round  flexible  chute  hopper,  as  the  case  may  be.  It  is 
necessary  when  using  a  line  gate  to  support  it  to  the  overhead  cable  from  both  ends. 
Hangers  are  provided  for  this  purpose  and  a  No.  6  chute  connection  is  always  included. 


No.  S 1 2.  Code  Word  Cyrus 


Bulletin  No.  2 j-E 


Page  fifty-one 


Lakewood  Continuous  Line  Chutes 


No.  L.  G.  106 


The  No.  6  joint  should  not  be  drawn  up  tight. 


Section 

Code  Word 

Length 

Receiving  End 

Discharge  End 

Truss  Rods 

Weight 

006 

Casket 

20  ft. 

Flange 

No.  6  Joint 

None 

211 

2006 

Carp 

10  ft. 

Flange 

No.  6  Joint 

None 

379 

3006 

Castle 

30  ft. 

Flange 

No.  6  Joint 

None 

577 

LG-106 

Crux 

10  ft. 

Flange 

No.  6  Joint 

None 

322 

The  Lakewood  Engineering  Company 

Cleveland,  U.  S.  A. 


Page  fifty-ttzo 


Lakewood  Type  “O"  Boom  Sections 

For  Type  “Om  Unit  Plants 


No.  0-4032 


No.  0-5032 


LA.KEWOOD  boom  chute  sections  are  the  first  sections  of  chute  in  the  unit  or  unit- 
counterweight  plants.  They  are  designed  for  greater  strength  than  the  standard 
J  trussed  sections,  the  trussing  and  size  of  angle  on  the  chute  being  considerably 
heavier.  These  boom  chute  sections  are  made  in  20,  30,  40  and  50  foot  lengths  for  use 
with  the  various  sizes  of  plants. 

When  used  with  unit  plants,  or  with  plants  using  a  CL-2030,  or  CL-3030  counter¬ 
weight.  the  receiving  elbow  of  the  boom  section  is  a  3-R  and  the  discharge  elbow  a 
plain  No.  2.  When  used  with  the  heavier  30  or  50  foot  counterweights,  the  receiv¬ 
ing  elbow  is  a  3-H  and  the  discharge  elbow  a  2-H.  These  various  elbows  are  consis¬ 
tent  in  strength  to  the  tvpe  of  plant  with  which  they  are  to  be  used. 

To  provide  great  range  in  the  size  of  counterweight  plants,  Lakewood  counter¬ 
weight  chutes  are  made  in  20,  30  and  50  foot  sizes,  and  in  two  types,  heavy  and  light. 
There  are,  of  course,  special  applications  for  each  type,  which  will  be  briefly  outlined. 

The  CL-2030  and  CL-3030  chutes  are  counter  balanced  distributing  chutes.  By 
means  of  the  bracket  which  can  be  attached  to  any  standard  20  or  30  foot  section,  the 
chute  may  be  counterbalanced  for  its  own  weight  empty.  When  pouring,  or  when  ad¬ 
ditional  sections  are  attached  to  it.  the  CL-2030,  or  CL-3030  must  always  be  supported 
at  the  discharge  end. 

(Continued) 


Bulletin  A  o.  2  j-E 


•on  or  AS 


Lakewood  50  Ft.  Heavy  Counterweight  page  fifty-three 


The  Lakeuood  Engineering  Company 
Cleveland,  L  .  S.  A. 


Page  fifty-four 


Lakewood  50  Ft.  Light  Counterweight 


Bulletin  No.  2J-E 


CL-5032  With  Chute  Section  No.  50309  1971 


Lakewood  30  Ft.  Counterweight  Sections 


Page  fifty-five 


The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  fifty-six 


Lakewood  Counterweight  Chutes 

(Continued) 

The  C-3030  is  a  heavy  type  30-ft.  counterweight.  When  used  on  a  steel  tower, 
with  any  type  of  plant,  it  may  be  tied  down  when  pouring,  if  used  alone  or  with  a  30- 
ft.  chute  attached,  or  it  may  be  counterweighted  to  support  as  much  as  a  50-ft.  section 
when  not  pouring;  but,  in  a  tied  down  condition,  either  on  a  boom,  unit  or  continuous 
line  plant,  it  must  not  have  a  greater  load  than  one  thirty  foot  length  of  chute. 

The  CL-5030  counterweight  should  never  be  tied  down  under  any  circumstances 
when  pouring,  on  either  wood  or  steel  towers.  It  can  be  counterweighted  enough  to 
support  an  additional  50-ft.  section  when  empty,  but  should  always  be  supported  at  the 
discharge  end  when  pouring  concrete. 

The  C-5030  is  designed  principally  for  use  in  continuous  line  or  mast  hopper 
plants  where  it  is  supported  by  a  derrick.  However,  with  a  boom  counterweight  plant 
on  a  steel  tower  of  the  No.  732  type,  it  may  be  used  tied  down,  supporting  an  addi¬ 
tional  30-ft.  chute  when  pouring  concrete. 

The  XC-5032  or  extra  heavy  counterweight  is  designed  only  for  double  counter¬ 
weight  plant  installations  on  continuous  line  or  derrick  supported  plants.  It  may  be 
tied  down  supporting  a  CL-5032  when  pouring  concrete,  but  the  discharge  end  of  the 
light  50-ft.  counterweight  must  be  supported,  when  pouring,  for  it  never  is  to  be  tied 
down  under  any  circumstances.  This  section  is  not  to  be  used  with  boom  or  unit  plants. 

Counterweight  chutes  are  made  up  of  standard  chute  sections  with  truss  or  bracket 
attached,  depending  on  the  size.  Complete  tables  are  given  for  each  size  of  counter¬ 
weight  showing  size  of  counterweight  block  required  for  various  conditions  when  the 
chute  is  empty.  The  counterweight  block  should  not  be  set  on  top  of  the  truss  but 
should  be  suspended  below  from  the  hanger  provided  for  that  purpose. 


Weights  Required  for  Counterbalancing  Counterweight  Chute 
Sections  Nos.  CL-2030,  CL-3030,  and  C-3030 


Equipment 


Weight  of  Counter-  Inside  Dimensions  of  Box  Using  2  Inch  Lumber  and  Dry 

weight  in  Lbs.  When  f - Sand  at  100  Lbs.  per  Cu.  Ft.  when  Chute  is  Empty - ^ 

Chute  is  Empty  Width  Length  Height 


CL-2030  Only 

205 

1'  10" 

2'  2" 

1'  0‘ 

CL-3030  Only 

447 

1'  10" 

2’  2" 

1'  6' 

C-3030  Only 

433 

1'  10" 

2'  2" 

1'  6' 

C-3030  with  No.  2030 

S92 

2'  0" 

2'  0" 

2'  3‘ 

C-3030  with  No.  3030 

1116 

2'  6" 

2'  6" 

2'  01 

C-3030  with  CL-2030 

13S5 

2'  6" 

2'  6" 

2'  6 

C-3030  with  CL-3030 

2110 

3'  0" 

3'  0" 

2'  6‘ 

Bulletin  No.  2j-E 


Page  fifty-seven 


Lakewood  Concrete  Carts 


THE  Lakewood  Concrete  Cart  has  a  capacity  of  6  cubic  feet  of  material  and  can  be  furnished  with  or  without  legs 
as  desired.  The  bottom  and  sides  of  the  cart  are  constructed  of  No.  11  gauge  plate.  In  order  to  secure  complete  dis¬ 
charge  the  corners  are  rounded  where  the  bottom  plate  is  riveted  to  the  flaring  sides.  The  top  of  the  body  is 
reinforced  with  a  heavy  angle.  The  axles  are  pressed  into  star  shaped  malleable  iron  trunnions  which  are  bolted  to 
the  side  of  the  cart,  adding  strength  and  reducing  the  chance  of  bent  axles.  The  elimination  of  the  long  axle  through 
the  body  makes  possible  complete  and  unobstructed  discharge.  Large  diameter  wheels  with  wide  tread  permits  easier 
travel  over  rough  surfaces.  The  Lakewood  concrete  cart  was  designed  for  maximum  strength  with  minimum  weight 
and  absolutely  meets  the  requirements  of  the  job.  It  can  be  equipped  with  42"  or  36"  diameter  wheels. 


Weight- 


No. 

Code  Word 

Description 

Capacity 

42"  Wheel 

36"  Wheel 

239 

Vine 

Without  legs 

6  cu.  ft. 

280 

250 

240 

Vial 

With  legs 

6  cu.  ft. 

295 

265 

The  Lakewood  Engineering  Company 

Cleveland,  U.  S.  A. 


Page  fifty-eight 


Lakewood  Type  “M”  Tower  Hoppers 

For  Use  with  Concrete  Carts  Only 


THE  LAKEWOOD  Type  “M” 
Tower  Hopper  was  designed  pri¬ 
marily  for  use  on  jobs  where  the 
concrete  is  to  be  distributed  by  concrete 
carts.  The  point  of  discharge  is  well 
away  from  the  tower,  thus  allowing 
ample  clearance  for  the  carts  when  load¬ 
ing.  These  hoppers,  in  the  20  and  30 
cubic  foot  sizes,  are  made  of  12  gauge 
plate,  while  the  40  and  60  foot  sizes  are 
of  10  gauge  plate.  They  are  all  equipped 
with  an  8"  x  12"  radial  gate. 

It  is  impossible  to  connect  chutes  to  this 
type  of  tower  hopper.  However,  it 
may  be  mounted  on  a  Number  500  wood 
sliding  frame  if  desired,  or  may  be  at¬ 
tached  to  the  tower  as  shown  in  the 
sketches  below. 

This  hopper  can  be  made  into  a  floor 
hopper  simply  by  the  addition  of  stand¬ 
ards,  or  it  may  be  used  as  a  charging  hop¬ 
per  for  elevator  buckets  in  re-elevating 
towers,  on  large  chuting  plants. 


Type  “M”  Tower  Hopper 


Showing  method  of  attaching  Type  “M"  Tower 
Hopper  to  the  Tower,  using  timber  supports. 


Type  “M”  Tower  Hopper 


Cu.  Ft. 

Capacity  Water 

No.  Code  Word  Working  Level  Wt.  C  D  J 


124  Woman  24  27  320  48  47  56 

130  Welfare  30  33  350  54  51J4  56 

140  Waste  40  46  521  60  56  68 

160  Welt  60  65  880  60  64  68 


Bulletin  No.  2J-E 


Page  fifty-nine 


Lakewood  Type  “O”  Floor  Hoppers 


THE  LAKEWOOD  Floor  Hopper 
is  especially  designed  for  holding 
concrete  which  is  to  be  distributed 
with  carts  or  wheelbarrows.  It  is  port¬ 
able,  self-supporting  and  may  be  placed 
in  any  convenient  location.  It  consists  of 
a  Type  “M”  tower  hopper,  bolted  to  steel 
standards.  This  construction  makes  it 
easy  to  erect  or  dismantle  in  the  field,  and 
allows  the  body  to  be  used  as  a  tower 
hopper  if  desired.  The  discharge  gate  of 
the  Hopper  extends  out  so  that  there  is 
ample  of  clearance  for  charging  carts  or 
wheelbarrows  as  the  case  may  be. 


Type  “O”  Floor  Hoppers 
Weights,  Capacities  and  Dimensions 


No. 

Code  Word 

Capacity 

Working 

Cu.  Ft. 
Water 
Level 

Weight 

Size  Gate 

A 

B 

C 

D 

E 

F 

H 

J 

K 

824 

Wharf 

24 

27 

715 

8x12 

87 

32 

48 

47 

47 

34  H 

61 

56 

25  y* 

830 

W  are 

30 

33 

785 

8x12 

93 

38 

54 

51^ 

48 

40^ 

61 

56 

25J4 

840 

Wool 

40 

46 

1040 

8x12 

97 

44 

60 

56 

48 

46J/2 

74 

68 

25J4 

860 

White 

60 

65 

1250 

8x12 

105 

44 

60 

64 

48 

46^ 

74 

68 

25^ 

The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  sixty 


Lakewood  Tower  Sheaves 


For  Wood  Tower 


IAKEWOOD  tower  sheaves  are  designed 
for  high  speed  work.  The  top  tower 
sheaves  are  of  the  live  pin  type  with 
bronze  bushed  bearing  boxes.  The  bottom 
swivel  sheave  is  bronze  bushed  with  an  un¬ 
usually  heavy  swivel  casting  for  support  and 
attaching  to  the  tower  base.  Details  are  given 
below. 

Sheaves  for  Top  of  Tower 


No. 

Code 

Description 

Size  of 
Rope 

Wt. 

TS-16 

Welco 

2-16"  diameter  sheaves 
and  bearings 

100 

TS-24 

Widow 

2-24"  diameter  sheaves 
and  bearings 

l" 

250 

TS-42 

Wop 

1-42"  diameter  sheave 
and  bearings 

l" 

250 

Sheaves  for  Bottom  of  Tower 

No. 

Code 

Description 

Size  of 
Rope 

Wt. 

BS-16 

Whistle 

1-16"  diameter  sheave 
and  bearing  s  w  i  ve  1 
bracket 

w 

175 

BS-24  T  Widam 

1—24"  diameter  sheave 
and  bearings 

1" 

125 

Dimensions  are  pitch  diameter  and  not  outside  diameter 

of  sheaves 

Sir*  'A//*' 


Bulletin  No.  2j-E 


Page  sixty-one 


Lakewood  Flexible  Chutes 


FLEXIBLE  chutes  can  be  used  to  advantage  for  guiding  the  flow  of  concrete  in 
vertical  or  nearly  vertical  lines.  The  connecting  chains  allow  the  twisting  of  sec¬ 
tions  and  make  it  possible  to  lead  the  chute  about  in  a  circle,  similar  to  the  action 
of  an  elephant’s  trunk;  for  this  reason,  they  are  sometimes  called  elephant  trunk  chutes. 

The  elephant  trunk  sections  are  made  in  3'  and  4'  lengths  and  are  tapered  so  that 
the  small  end  of  one  tube  fits  loosely  into  the  large  end  of  the  next  section,  giving  the 
necessary  working  clearance. 

The  hoppers  to  which  these  chute  sections  are  attached,  are  made  either  round  or 
square  and  can  receive  concrete  from  mixers,  cars,  carts,  ends  of  the  chute  lines  or  line 
gates.  The  round  hopper,  No.  8850,  has  angle  lugs  on  it  so  that  it  can  be  easily  attached 
to  the  standard  Type  “O”  elbow  or  line  gate. 


Sec. 

Code  Word 

Length 

Dia.  Receiving  End 

Dia.  Discharge  End 

Weight 

8803 

Chew 

3'  0" 

10"  dia. 

9"  dia. 

29 

8804 

Chum 

4'  0" 

10"  dia. 

9"  dia. 

39 

8850 

Chaucer 

2'  iy2" 

1'  W  dia. 

9"  dia. 

73 

8870 

Cherish 

3'  0" 

2'  0"  x  2'  0"  sq. 

9"  dia. 

80 

The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  sixty-two 


Lakewood  Flat  Bottomed  Chute  Sections 


No.  Ex  8.  Code  Word  Chef 


No.  Ex  16.  Code  Word  Cheer 


FLAT  chute  sections  are  used  at  the  ends  of  main  chute  lines  or  under  the  discharge 
spout  of  a  mixer  to  pour  concrete  directly  into  the  forms.  They  can  be  supported 
on  light  wooden  horses,  which  can  be  conveniently  shifted  for  any  desired  setting. 
The  flat  chute  sections  are  rigidly  constructed  of  twelve  gauge  steel  plate.  Much  shift¬ 
ing  of  the  main  chute  line  can  be  avoided  by  the  use  of  these  light  weight  chutes.  They 
are  supplied  in  lengths  of  eight  and  sixteen  feet,  tapered  so  that  the  discharge  end  of 
one  chute  will  fit  into  the  receiving  end  of  the  next  chute. 


Sec.  No. 

Code  Word 

Length 

Width  Inside 
Receiving  End 

Width  Inside 
Discharge  End 

Depth 

Weight 

Ex.  8 

Chef 

8'  0" 

1'  6" 

1'  2" 

0'  5" 

95 

Ex.  16 

Cheer 

16'  0" 

1'  6" 

1’  2" 

0'  5" 

180 

Bulletin  No.  2J-E 


Lakewood  Bin  Gates 


Page  sixty-three 


IAKEWOOD  BIN  GATES  are  designed 
for  attaching  to  the  side  or  bottom  of 
wood  or  metal  material  bins,  hoppers 
or  bulk  heads,  where  loose  material,  such  as 
sand,  stone,  gravel,  ore,  coal  or  concrete  is  to 
be  discharged.  These  bins  are  made  in  two 
standard  styles  and  sizes,  of  tV'  steel  plate  re¬ 
inforced  with  malleable  iron  castings.  The 
maximum  size  of  aggregate  that  will  flow 
freely  through  the  12"  x  18"  gate,  is  one  that 
will  pass  through  a  7"  ring;  the  maximum 
size  of  aggregate  that  will  flow  through  an 
18"xl8"  gate  freely,  is  one  that  will  pass 
through  a  9"  ring.  The  gate  proper  fits 
snugly  against  the  side  and  end  plates.  Spe¬ 
cial  care  has  been  taken  in  its  construction  to 
make  them  practically  grout  tight. 


Weights  and  Dimensions 


No. 

Code  Word 

Size 

Type 

Wt. 

A 

B 

c 

D 

E 

F 

X 

H 

K 

L 

A-12 

Wae 

12"xl8" 

A 

155 

1'  0" 

0'  9" 

1'  6" 

1'  6" 

1'  9" 

2’  0" 

1'  9" 

1'  3 

B-12 

Wabe 

12"xl8" 

B 

155 

1'  0" 

o'  4  y&" 

2'  0" 

1'  6" 

0'  6" 

1'  5" 

2'  6" 

2'  0" 

1'  9" 

1'  9 

A-18 

Weft 

18"xl8" 

A 

220 

1'  6" 

O'  9" 

2'  0" 

1'  6" 

2'  1" 

2'  0" 

1'  9" 

1'  9 

B-18 

Whelk 

18"xl8" 

B 

220 

1'  6" 

o'  6y2" 

2'  8" 

1'  6" 

0'  8 1/2" 

2'  0" 

3'  \ys 

2'  0" 

1'  9" 

2'  5 

Size  of  holes  for  54”  bolts 


The  Lakewood  Engineering  Company 
Cleveland,  JJ.  S.  A. 


Page  sixty-four 


Lakewood  Narrow  Gauge  Track 


Four  years  old — used  in  six 
different  jobs,  taken  up,  re- 
laid,  and  shipped  many  times 
yet  this  Lakewood  Track  is 
practically  as  good  as  new. 


IAKEWOOD  narrow  gauge  portable  track  is  furnished 
in  20  or  25  lb.  standard  A.  S.  C.  E.  rail,  in  15-ft.  sec- 
tions,  carefully  sawed  to  exact  length.  A  pressed 
steel  tie,  42"  long  by  5^4"  wide  with  a  flange  1}4"  deep 
around  the  entire  edge  is  riveted  to  the  rail.  Standard  15- 
ft.  sections  are  furnished  with  five  or  six  ties  depending  on 
the  loads  to  be  carried  and  the  soil  conditions.  A  15-ft. 
section  of  Lakewood  track,  20  lb.  rail,  five  ties  and  a  joint 
tie  weighs  307  lbs.,  with  six  ties  324  lbs.  For  25-lb.  rail  add 
50  lbs.  per  15-ft.  section.  60'  radius  curved  sections  7l/2' 
long  are  standard.  Switches,  turnouts,  etc.,  can  be  fur¬ 
nished  to  meet  specific  requirements.  Complete  details  on 
Lakewood  track  for  all  purposes  are  given  in  bulletin  No. 
41. 


The  flange  all  around  the  Lakewood  tie  insures  firm 
bearing  in  almost  any  soil 


The  Lakewood  joint  tie  takes  the  place  of  20  separate 
pieces  and  insures  smooth  riding  over  the  joints 
Patented  December  9,  1919 


fEi  E  ifl  .41  I?1 


Lakewood  Track  is  amply  strong  to  carry  the  loads,  and  yet  is  light  enough  for  convenient  handling.  At  the  right  end  of 
the  above  section  is  the  Lakewood  Joint  Tie,  which  is  shown  slipped  back,  ready  for  connecting  the  next  section  of  track 

Bulletin  No.  2J-E 


Lakewood  V-Dump  Cars 


Page  sixty- five 


This  car  is  designed  to  handle  bulk  material,  such  as  ashes,  coal,  sand,  earth  or  crushed  stone  in  con¬ 
struction  or  industrial  plant  operations.  The  V-dump  body,  because  of  its  accurate  balance,  is  easy  to 
dump  and  the  angle  is  such  as  to  insure  complete  discharge. 

The  body  locking  device  consists  of  two  independent  latches.  Raising  one  latch  permits  the  body  to 
dump  only  away  from  the  raised  latch,  the  other  preventing  the  body  from  dumping  towards  the  operator. 
On  righting  the  body  it  automatically  trips  the  locking  latch  which  falls  into  place,  holding  the  body  in  the 
upright  position. 

Specifications  as  to  bearings,  couplers,  etc.,  will  depend  on  whether  cars  are  required  for  hand  or  loco¬ 
motive  haulage  and  will  be  given  to  suit  conditions. 


Capacity  1-Yard  1^4-Yard  2  Yards 


Length  overall  .  7'  8j£"  8'  2 8'  10J4" 

Length  inside  body  .  4'  6J4"  5'  15/s"  5'  9tV' 

Width  overall  .  4'  2]/&"  4'  9l/2"  S'  SH" 

Wheels  (C.  I.)  chilled  tread .  12"  14"  14" 

Wheel  base  .  2'  6"  3'  0"  3'  0" 

Track  gauge  .  24"  and  30"  24",  30"  and  36"  36" 

Weight  (approx.)  .  1320  lbs.  1790  lbs.  2080  lbs. 


The  Lak  ewood  Engineering  Company 

Cleveland,  U.  S.  A. 


Page  sixty-six 


Lakewood  Radial  Gate  Hopper  Car 


SOMETIMES  occasions  arise  in  con¬ 
struction  work  where  concrete  can  be 
most  advantageously  handled  by  the  use 
of  cars.  The  above  photograph  shows  a  com¬ 
bination  of  chuting  and  cars.  The  concrete 
was  chuted  to  a  centrally  located  hopper  from 
which  it  was  taken  by  means  of  radial  gate 
honoer  cars  to  the  forms. 

The  Lakewood  Radial  Gate  Hopper  car 
shown  above,  has  been  designed  to  solve  just 
such  problems.  The  frame  is  of  heavy  chan¬ 
nel  construction  and  the  wheels  are  cast  iron 
with  chilled  tread,  12"  in  diameter  running 
on  \}4"  axles  with  plain  roller  bearings. 
Altho  not  shown  in  the  cut,  link  and  pin 
couplers  are  provided  as  standard  equipment. 


This  car  is  not  only  useful  for  handling  concrete,  but  can  also  be  used  to  good 
advantage  to  carry  chemicals,  coal,  and  other  fine  material.  All  dimensions  are  given 
in  the  table  below. 


Capacity 
Water  Level 

Weight 

Lbs. 

Track 

Gauge 

Wheel 

Base 

Wheel 

Dia. 

Axle 

Dia. 

Body 

Plate 

Body 

Length 

Body 

Width 

Size  Gate 

f - - — Overall  Dimensions - N 

Height  Width  Length 

24  cu.  ft. 

975 

24" 

36 

12 

m 

11  Ga. 

48 

41 

14x14 

52 

52^ 

69" 

32  cu.  ft. 

1065 

24" 

36 

12 

m 

11  Ga. 

48 

41 

14x14 

59^ 

52J4 

69" 

Bulletin  No.  2J-E 


Page  sixty-seven 


Lakewood  Glam  Shell  Buckets 


IAKEWOOD  Clam  Shell  Buckets  are  made  in  two  types,  the  Handler  and  the  Dig¬ 
ger.  The  first  is  used  for  handling  materials  only.  The  Digger  type  of  bucket  is 
for  more  severe  service  and  is  frequently  equipped  with  teeth  for  digging  or  han¬ 
dling  material  for  which  the  lighter  type  of  bucket  would  not  be  suitable. 

The  Handler  buckets  are  made  in  sizes  from  one-half  to  two  cubic  yards.  The 
Digger  buckets  are  furnished  with  capacities  of  from  three-quarters  to  two  and  one- 
half  cubic  yards.  Complete  details  of  Lakewood  Clam  Shell  Buckets  are  given  in  a 
special  clam  shell  bulletin. 


LAKEWOOD  DIGGER 

Water  Amount 


Type 

Size 

Code  Word 

Av.  Load 
Cu.  Ft. 

Level 

Cu.  Ft. 

Thickness 
of  Shells 

Weights 

Pounds 

Diameter 
of  Sheaves 

Cable  Size 
Recommended 

of  Cable 
Overhauled 

640 

B 

Dab 

22 

13 

W’  Plate 

2750 

10" 

Vi" 

20' 

640 

C 

Doubt 

32 

19 

y2"  Plate 

3830 

12" 

Vs" 

15' 

640 

D 

Daper 

42 

27 

Yi"  Plate 

4500 

12" 

Vs"  or  3/4" 

18' 

640 

E 

Dart 

59 

41 

14"  Plate 

6100 

14" 

V\"  or  V%" 

25' 

640 

F 

Dean 

74 

54 

Yi"  Plate 

7100 

14" 

w 

27' 

LAKEWOOD  HANDLER 


641 

A 

Dado 

15 

10 

Y\"  Plate 

2170 

10" 

Y." 

13' 

641 

B 

Darius 

22 

13 

yy  Plate 

2530 

10" 

yy 

20' 

641 

C 

Dorcius 

32 

19 

y&"  Plate 

33  50 

12" 

Vs" 

15' 

641 

D 

Dagon 

40 

27 

Ys"  Plate 

3900 

12" 

SOI 

°N 

O 

*1 

3k 

18' 

The  Lakewood  Engineering  Company 
Cleveland,  U.  S.  A. 


Page  sixty-eight 


Miscellaneous  Tables 


Table  Giving  Sizes  of  Cable  for  Continuous  Chute  Lines 


Span 

100  Ft. 

200  Ft. 

300  Ft. 

400  Ft. 

500  Ft. 

600  Ft. 

700  Ft. 

800'  Ft. 

900  Ft. 

1000  Ft. 

t 

- Safe  Uniform  Load 

in  Pounds 

for  6x19  Plow 

Steel  Based 

on  Sag  8  Percent  of  the  Span - 

r 

Vz 

2521 

2482 

2443 

2404 

2365 

2326 

2287 

2248 

2209 

2170 

X 

3906 

3844 

3782 

3720 

3658 

3596 

3534 

3472 

3410 

3348 

Ya 

5799 

5710 

5621 

5532 

5443 

5354 

5265 

5176 

5087 

4998 

Vi 

7304 

7184 

7064 

6944 

6824 

6704 

6584 

6464 

6344 

6224 

) 

i 

9570 

9412 

9224 

9096 

8938 

8780 

8622 

8464 

8306 

8148 

C3 

iX 

11832 

11632 

11432 

11232 

11032 

10832 

10632 

10432 

10322 

10032 

1 X 

15115 

14870 

14625 

14380 

14132 

13890 

13645 

13400 

13155 

12910 

O 

m 

17620 

17320 

17020 

16720 

16420 

16120 

15820 

15520 

15220 

14920 

u 

V 

VX 

20125 

19770 

19415 

19060 

18705 

18350 

17995 

17640 

17285 

16930 

V 

£ 

t  Y» 

23905 

23490 

23075 

22660 

22245 

21830 

21415 

21000 

20585 

20170 

_C0 

m 

27675 

27190 

26705 

26220 

25735 

25250 

24765 

24280 

23795 

23310 

lYs 

31445 

30890 

30335 

29780 

29225 

28670 

28115 

27560 

27005 

26450 

2 

35210 

34580 

33950 

33320 

32690 

32060 

31430 

30800 

30170 

29540 

2/4 

46560 

45760 

44960 

44160 

43360 

42560 

41760 

40960 

40160 

39360 

2/ 

57895 

'6910 

55925 

54940 

53955 

52970 

51985 

51000 

50015 

49030 

2  Ya 

69205 

<  8010 

66815 

65620 

64025 

63230 

62035 

60840 

59645 

58450 

Capacity  of  cable  varies  directly  as  sag — i.  e.  12%  sag  increases  capacity  50%  over  8%  sag.  Stress  due  to  the  weight 
of  cable  itself  has  been  considered  in  compiling  these  tables. 

Factor  of  Safety  5. 

EXAMPLE 

Assume  chute  line  280  feet  long  with  one  line  gate  with  ninety  feet  of  chute  attached  to  it.  Distance  between  tail 
tower  and  main  tower  380  feet.  Assume  %-yard  mixer  being  used.  Maximum  possible  live  load  two  21  cu.  ft.  batches 
concrete  in  this  case. 

Under  no  circumstances  figure  live  load  more  than  50  lbs.  per  lineal  foot. 

Deadload-weight  of  Lakewood  continues  line  chutes  including  rope  and  blocks  may  be  taken  as  22  lbs.  per  lineal  foot. 

Weight  of  chute  on  line  gate  should  be  doubled  when  figuring  size  of  cable. 

Computations — 

Dead  load  280x22  =  6,160  lbs.  weight  of  chute  line. 

350  lbs.  weight  of  line  gate. 

4,060  lbs.  weight  of  chutes  on  line  gate. 


D. 


Live  load 


280x22  = 

Line  Gate  =: 
90x2x22 
I Total  -  - 
42x150  = 


10,570 

6,300 


Total  —  16,870  lbs. 

Referring  to  table  on  6x19  P.  S.  Cable  400  ft.  span,  16,870  lbs.  require  lY  cable. 


Wire  Rope  Table 


Diameter 
of  Rope 

Weight  per  Foot 

Breaking  Load 
Tons 

6x19  Plow  Steel 

Safe  Working 

Load  in  Tons 

Factor  of  Safety  5 

Breaking  Load 
Tons 

6x19  Crucible  Cast 
Steel  Safe  Working 
Load  in  Tons 
Factor  of  Safety  5 

Ys 

.22 

5.75 

1.15 

5.30 

1.06 

Vz 

.39 

10.00 

2.00 

9.20 

1.84 

Y 

.62 

15.50 

3.10 

14.00 

2.80 

Ya 

.89 

23. 

4.60 

20.20 

4.04 

Vs 

1.20 

29. 

5.80 

26. 

5.20 

l 

1.58 

38. 

7.60 

34. 

6.80 

D/s 

2.00 

47. 

9.40 

43. 

8.60 

1 X 

2.45 

58. 

12. 

53. 

10.60 

1  Ys 

3.00 

72. 

14. 

64. 

12.80 

lVz 

3.55 

82. 

16. 

73. 

14.60 

iYs 

4.15 

94. 

19. 

83. 

16.60 

iH 

4.85 

112. 

22. 

99. 

19.80 

V/s 

5.55 

127. 

25. 

112. 

22.40 

2 

6.30 

140. 

28. 

123. 

24.60 

2Va 

8.00 

186. 

37. 

160. 

32.00 

2  X 

9.85 

229. 

46. 

200. 

40.00 

2Ya 

11.95 

275. 

55. 

243. 

48.60 

Manila  Rope  Table 


Dia.  Inches 

No.  of  Feet  in  1  Lb. 

Coils 

Breaking  Load  of 

New  Rope  in  Lbs. 

Proper 

Working  Load 
Factor  of  Safety  5 

Length  Feet 

Weight  Lbs. 

Ya 

6.3 

1200 

190 

4700 

940 

l 

3.7 

1200 

325 

7500 

1500 

Wz 

1.68 

1200 

715 

17000 

3400 

2 

.94 

1200 

1275 

30000 

6000 

Bulletin  No.  2j-E 


AVERY  I 

CLASSES 


